Notes to Consolidated Financial Statements

(unaudited)

Note 1 – Overview

Tesla, Inc. (“Tesla”, the “Company”, “we”, “us” or “our”) was incorporated in the State of Delaware on July 1, 2003. We design, develop, manufacture and sell high-performance fully electric vehicles and design, manufacture, install and sell solar energy generation and energy storage products. Our Chief Executive Officer, as the chief operating decision maker (“CODM”), organizes the Company, manages resource allocations and measures performance among two operating segments: (i) automotive and (ii) energy generation and storage.

Note 2 – Summary of Significant Accounting Policies

Unaudited Interim Financial Statements

The consolidated balance sheet as of September 30, 2017, the consolidated statements of operations and the consolidated statements of comprehensive loss for the three and nine months ended September 30, 2017 and 2016 and the consolidated statements of cash flows for the nine months ended September 30, 2017 and 2016, as well as other information disclosed in the accompanying notes, are unaudited. The consolidated balance sheet as of December 31, 2016 was derived from the audited consolidated financial statements as of that date. The interim consolidated financial statements and the accompanying notes should be read in conjunction with the annual consolidated financial statements and the accompanying notes contained in our Annual Report on Form 10-K for the year ended December 31, 2016.

The interim consolidated financial statements and the accompanying notes have been prepared on the same basis as the annual consolidated financial statements and, in the opinion of management, reflect all adjustments, which include only normal recurring adjustments, necessary for a fair statement of the results of operations for the periods presented. The consolidated results of operations for any interim period are not necessarily indicative of the results to be expected for the full year or for any other future years or interim periods.

Reclassifications

Certain prior period balances have been reclassified to conform to the current period presentation in the consolidated financial statements and the accompanying notes. Such reclassifications had no effect on previously reported results of operations. Starting in the fourth quarter of 2016, we have reclassified the revenue and cost of revenue of our energy storage products from ‘services and other’ into ‘energy generation and storage’ for all periods presented in order to align with our reportable segments.

Resale Value Guarantees and Other Financing Programs

Vehicle sales to customers with a resale value guarantee

Prior to June 30, 2016, we offered resale value guarantees or similar buy-back terms to all customers who purchase vehicles and who financed their vehicles through one of our specified commercial banking partners. Since June   30, 2016, this program is available only in certain international markets. Under this program, customers have the option of selling their vehicle back to us during the guarantee period for a determined resale value. Guarantee periods generally range from 36 to 39 months. Although we receive full payment for the vehicle sales price at the time of delivery, we are required to account for these transactions as operating leases. The amount of sale proceeds equal to the resale value guarantee is deferred until the guarantee expires or is exercised. The remaining sale proceeds are deferred and recognized on a straight-line basis over the stated guarantee period to automotive leasing revenue. The guarantee period expires at the earlier of the end of the guarantee period or the pay-off of the initial loan. We capitalize the cost of these vehicles on the consolidated balance sheets as operating lease vehicles, net, and depreciate their value, less salvage value, to cost of automotive leasing revenue over the same period.

In cases where a customer retains ownership of a vehicle at the end of the guarantee period, the resale value guarantee liability and any remaining deferred revenue balances related to the vehicle are settled to automotive leasing revenue and the net book value of the leased vehicle is expensed to costs of automotive leasing revenue. If a customer returns the vehicle to us during the guarantee period, we purchase the vehicle from the customer in an amount equal to the resale value guarantee and settle any remaining deferred balances to automotive leasing revenue, and we reclassify the net book value of the vehicle on our balance sheet to used vehicle inventory. As of September 30, 2017 and December 31, 2016, $279.9 million and $179.5 million, respectively, of the guarantees were exercisable by customers within a 12-month period from each such date.

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Vehicle sales to leasing partners with a resale value guarantee

We also offer resale value guarantees in connection with automobile sales to certain leasing partners. As we have guaranteed the value of these vehicles and as the vehicles are leased to end-customers, we account for these transactions as interest bearing collateralized borrowings as required under ASC 840, Leases . Under this program, cash is received for the full price of the vehicle and is recorded within resale value guarantees for the long-term portion and deferred revenue for the current portion. We accrete the deferred revenue amount to automotive leasing revenue on a straight-line basis over the guarantee period and accrue interest expense based on our borrowing rate. We capitalize vehicles under this program to operating lease vehicles, net, on the consolidated balance sheets, and we record depreciation from these vehicles to cost of automotive leasing revenues during the period the vehicle is under a lease arrangement. Cash received for these vehicles, net of revenue recognized during the period, is classified as collateralized lease borrowings within cash flows from financing activities in the consolidated statements of cash flows.

At the end of the lease term, we settle our liability in cash by either purchasing the vehicle from the leasing partner for the resale value guarantee amount or paying a shortfall to the guarantee amount the leasing partner may realize on the sale of the vehicle. Any remaining balances within deferred revenue and resale value guarantee will be settled to automotive leasing revenue. In cases where the leasing partner retains ownership of the vehicle after the end of our guarantee period, we expense the net value of the leased vehicle to costs of automotive leasing revenue . The maximum amount we could be required to pay under this program, should we decide to repurchase all vehicles, was $1.18   billion and $855.9 million as of September 30, 2017 and December 31, 2016, respectively, including $263.5 million within a 12-month period from September 30, 2017 .

As of September 30, 2017 and December 31, 2016, we had $1.57 billion and $ 1.18 billion , respectively, of such borrowings recorded in resale value guarantees and $341.0   million and $ 289.1  million, respectively, recorded in deferred revenue liability . As of September 30, 2017 and December 31, 2016, we had a total of $46.5 million and $57.0 million, respectively, in account receivables from our leasing partners .

On a quarterly basis, we assess the estimated market values of vehicles under our resale value guarantee program to determine if we have sustained a loss on any of these contracts. As we accumulate more data related to the resale values of our vehicles or as market conditions change, there may be material changes to their estimated values.

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Activity related to our resale value guarantee and similar programs consisted of the following (in thousands):

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Income Taxes

There are transactions that occur during the ordinary course of business for which the ultimate tax determination is uncertain. As of September 30, 2017 and December 31, 2016, the aggregate balances of our gross unrecognized tax benefits were $300.0 million and $203.9 million, respectively, of which $292.9 million and $198.3 million, respectively, would not give rise to changes in our effective tax rate since these tax benefits would increase a deferred tax asset that is currently fully offset by a valuation allowance.

Net Loss per Share of Common Stock Attributable to Common Stockholders

Basic net income (loss) per share of common stock attributable to common stockholders is calculated by dividing net income (loss) attributable to common stockholders by the weighted-average shares of common stock outstanding for the period. Potentially dilutive shares, which are based on the weighted-average shares of common stock underlying outstanding stock-based awards, warrants and convertible senior notes using the treasury stock method or the if-converted method, as applicable, are included when calculating diluted net income (loss) per share of common stock attributable to common stockholders when their effect is dilutive. Since we expect to settle in cash the principal outstanding under the 0.25% Convertible Senior Notes due in 2019, the 1.25% Convertible Senior Notes due in 2021 and the 2.375% Convertible Senior Notes due in 2022, we use the treasury stock method when calculating their potential dilutive effect, if any. The following table presents the potentially dilutive shares that were excluded from the computation of diluted net income (loss) per share of common stock attributable to common stockholders, because their effect was anti-dilutive:

Credit Risk

Financial instruments that potentially subject us to a concentration of credit risk consist of cash, cash equivalents, restricted cash, accounts receivable and interest rate swaps. Our cash balances are primarily invested in money market funds or on deposit at high credit quality financial institutions in the United States. At times, these deposits may be in excess of insured limits. As of September 30, 2017, no customer represented 10% or more of our total accounts receivable balance. As of December 31, 2016, one customer represented 10% or more of our total accounts receivable balance. The risk of concentration for our interest rate swaps is mitigated by transacting with several highly rated multinational banks. We maintain reserves for any amounts that we consider uncollectible.

Supply Risk

We are dependent on our suppliers, the majority of which are single source suppliers, and the inability of these suppliers to deliver necessary components of our products in a timely manner at prices, quality levels and volumes acceptable to us, or our inability to efficiently manage these components from these suppliers, could have a material adverse effect on our business, prospects, financial condition and operating results.

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Warranties

We provide a manufacturer’s warranty on all new and certified used vehicles, production powertrain components and systems and energy products we sell. In addition, we also provide a warranty on the installation and components of the solar energy systems we sell for periods typically between 10 to 30 years. We accrue a warranty reserve for the products sold by us, which includes our best estimate of the projected costs to repair or replace items under warranty. These estimates are based on actual claims incurred to date and an estimate of the nature, frequency and costs of future claims. These estimates are inherently uncertain given our relatively short history of sales, and changes to our historical or projected warranty experience may cause material changes to the warranty reserve in the future. The warranty reserve does not include projected warranty costs associated with our vehicles subject to lease accounting and our solar energy systems under lease contracts or power purchase agreements, as the costs to repair these warranty claims are expensed as incurred. The portion of the warranty reserve expected to be incurred within the next 12 months is included within accrued liabilities and other while the remaining balance is included within other long-term liabilities on our consolidated balance sheets. Warranty expense is recorded as a component of cost of revenues. Accrued warranty activity consisted of the following (in thousands):

For the three and nine months ended September 30, 2017, warranty costs incurred for vehicles accounted for as operating leases or collateralized debt arrangements were $10.8 million and $24.3 million, respectively, and for the three and nine months ended September 30, 2016, such costs were $7.2 million and $12.3 million, respectively.

Recent Accounting Pronouncements

In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2014-09, Revenue from Contracts with Customers , to replace the existing revenue recognition criteria for contracts with customers. In August 2015, the FASB issued ASU No. 2015-14, Deferral of the Effective Date , to defer the effective date of ASU No. 2014-09 to interim and annual periods beginning after December 15, 2017, with early adoption permitted. Subsequently, the FASB issued ASU No. 2016-08, Principal versus Agent Considerations , ASU No. 2016-10, Identifying Performance Obligations and Licensing , ASU No. 2016-11, Rescission of SEC Guidance Because of Accounting Standards Updates 2014-09 and 2014-16 Pursuant to Staff Announcements at the March 3, 2016 EITF Meeting , ASU No. 2016-12, Narrow-Scope Improvements and Practical Expedients , and ASU No. 2016-20, Technical Corrections and Improvements , to clarify and amend the guidance in ASU No. 2014-09. We currently expect to adopt the ASUs on January 1, 2018 on a modified retrospective basis through a cumulative adjustment to equity. The adoption of the ASUs might accelerate the revenue recognition of certain vehicle sales to customers or leasing partners with a resale value guarantee, which may qualify to be accounted for as sales with a right of return as opposed to the current accounting as operating leases or collateralized lease borrowings. Our interpretation is subject to change as a result of future changes in market conditions, incentives or program offerings. Upon adoption of the ASUs, we currently estimate an increase to equity in the range of $550.0 million to $750.0 million, including the impact of adjusting deferred revenue for investment tax credit balances. We are continuing to assess the impact of adopting the ASUs on the consolidated financial statements, and we are continuing to adjust our accounting processes accordingly.

In February 2016, the FASB issued ASU No. 2016-02, Leases , to require lessees to recognize all leases, with certain exceptions, on the balance sheet, while recognition on the statement of operations will remain similar to current lease accounting. The ASU also eliminates real estate-specific provisions and modifies certain aspects of lessor accounting. The ASU is effective for interim and annual periods beginning after December 15, 2018, with early adoption permitted. We currently expect to adopt the ASU on January 1, 2019. We will be required to recognize and measure leases existing at, or entered into after, the beginning of the earliest comparative period presented using a modified retrospective approach, with certain practical expedients available. We intend to elect the available practical expedients upon adoption. Upon adoption, we expect the consolidated balance sheet to include a right of use asset and liability related to substantially all of our lease arrangements. We are continuing to assess the impact of adopting the ASU on our financial position, results of operations and related disclosures and have not yet concluded whether the effect will be material.

In March 2016, the FASB issued ASU No. 2016-06, Contingent Put and Call Options in Debt Instruments , to clarify when a contingent put or call option to accelerate the repayment of debt is an embedded derivative. The ASU is effective for interim and

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annual p eriods beginning after December 15, 2016, with early adoption permitted. Adoption of the ASU is modified retrospective. We adopted the ASU on January 1, 2017, but the ASU did not have an impact on the consolidated financial statements.

In March 2016, the FASB issued ASU No. 2016-09, Improvements to Employee Share-Based Payment Accounting , to simplify the accounting for the income tax effects from share-based compensation, the accounting for forfeitures and the accounting for statutory income tax withholding, among others. In particular, the ASU requires all income tax effects from share-based compensation to be recognized in the consolidated statement of operations when the awards vest or are settled, the ASU permits accounting for forfeitures as they occur, and the ASU permits a higher level of statutory income tax withholding without triggering liability accounting. Adoption of the ASU is modified retrospective, retrospective and prospective, depending on the specific provision being adopted. We adopted the ASU on January 1, 2017. Our gross U.S. deferred tax assets increased by $909.1 million as a result of our adoption, which was fully offset by a corresponding increase to our valuation allowance. In addition, we now account for forfeitures as they occur.

In August 2016, the FASB issued ASU No. 2016-15, Classification of Certain Cash Receipts and Cash Payments , to reduce the diversity in practice with respect to the classification of certain cash receipts and cash payments on the statement of cash flows. The ASU is effective for interim and annual periods beginning after December 15, 2017, with early adoption permitted. Adoption of the ASU is retrospective. We plan to adopt the ASU on January 1, 2018, which will impact the classifications within the consolidated statements of cash flows.

In October 2016, the FASB issued ASU No. 2016-16, Intra-Entity Transfers of Assets Other Than Inventory , to require the recognition of the income tax effects from an intra-entity transfer of an asset other than inventory. The ASU is effective for interim and annual periods beginning after December 15, 2017, with early adoption permitted. Adoption of the ASU is modified retrospective. We early adopted the ASU on January 1, 2017. Our adoption did not have a material impact on the consolidated financial statements.

In November 2016, the FASB issued ASU No.   2016-18, Statement of Cash Flows: Restricted Cash , which requires entities to present the aggregate changes in cash, cash equivalents, restricted cash and restricted cash equivalents in the statement of cash flows. As a result, the statement of cash flows will be required to present restricted cash and restricted cash equivalents as a part of the beginning and ending balances of cash and cash equivalents. The ASU is effective for interim and annual periods beginning after December 15, 2017, with early adoption permitted. Adoption of the ASU is retrospective. We plan to adopt the ASU on January 1, 2018, which will impact the classifications within the consolidated statements of cash flows.

In January 2017, the FASB issued ASU No. 2017-01, Clarifying the Definition of a Business , to clarify the definition of a business with the objective of assisting entities with evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. The ASU is effective for interim and annual periods beginning after December 15, 2017, with early adoption permitted. Adoption of the ASU is prospective. We plan to adopt the ASU on January 1, 2018.

In January 2017, the FASB issued ASU No. 2017-04, Simplifying the Test for Goodwill Impairment , to simplify the test for goodwill impairment by removing Step 2. An entity will, therefore, perform the goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount, recognizing an impairment charge for the amount by which the carrying amount exceeds the fair value, not to exceed the total amount of goodwill allocated to the reporting unit. An entity still has the option to perform a qualitative assessment to determine if the quantitative impairment test is necessary. The ASU is effective for interim and annual periods beginning after December 15, 2019, with early adoption permitted for interim or annual goodwill impairment tests performed on testing dates after January 1, 2017. Adoption of the ASU is prospective. We have not yet selected an adoption date, and the ASU will have a currently undetermined impact on the consolidated financial statements.

In May 2017, the FASB issued ASU No. 2017-09, Scope of Modification Accounting , to provide guidance on which changes to the terms or conditions of a share-based payment award require an entity to apply modification accounting. The ASU is effective for interim and annual periods beginning after December 15, 2017, with early adoption permitted. Adoption of the ASU is prospective. We plan to adopt the ASU on January 1, 2018.

In August 2017, the FASB issued ASU No. 2017-12, Targeted Improvements to Accounting for Hedging Activities , to simplify the application of current hedge accounting guidance. The ASU expands and refines hedge accounting for both non-financial and financial risk components and aligns the recognition and presentation of the effects of the hedging instrument and the hedged item in the financial statements. The ASU is effective for interim and annual periods beginning after December 15, 2018, with early adoption permitted. Adoption of the ASU is generally modified retrospective. We are currently obtaining an understanding of the ASU and plan to adopt the ASU on January 1, 2019.

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Note 3 – Business Combinations

Grohmann Acquisition

On January 3, 2017, we completed our acquisition of Grohmann Engineering GmbH (now Tesla Grohmann Automation GmbH or “Grohmann”), a company that specializes in the design, development and sale of automated manufacturing systems, for $109.5 million in cash. We acquired Grohmann to improve the speed and efficiency of our manufacturing processes.

At the time of acquisition, we entered into an incentive compensation arrangement for up to a maximum of $25.8 million of payments contingent upon continued service with us for 36 months after the acquisition date. Such payments would have been accounted for as compensation expense in the periods earned. However, during the three months ended March 31, 2017, we terminated the incentive compensation arrangement and accelerated the payments thereunder. As a result, we recorded the entire $25.8 million as compensation expense during the three months ended March 31, 2017, which was included in selling, general and administrative expense in our consolidated statements of operations.

Fair Value of Assets Acquired and Liabilities Assumed

We accounted for the Grohmann acquisition using the purchase method of accounting for business combinations under ASC 805, Business Combinations . The total purchase price is allocated to the tangible and identifiable intangible assets acquired and liabilities assumed based on their estimated fair values as of the acquisition date.

As we finalize our estimate of the fair values of the identifiable intangible assets acquired and deferred taxes, additional purchase price adjustments may be recorded during the measurement period (a period not to exceed 12 months), which may have a material impact on our results of operations and financial position. Fair value estimates are based on a complex series of judgments about future events and uncertainties and rely heavily on estimates and assumptions. The judgments used to determine the estimated fair value assigned to each class of assets acquired and liabilities assumed, as well as asset lives and the expected future cash flows and related discount rates, can materiality impact our results of operations. Significant inputs used included the amount of cash flows, the expected period of the cash flows and the discount rates. There were no changes to the fair values of the assets acquired and the liabilities assumed during the six months ended September 30, 2017.

The preliminary allocation of the purchase price is based on management’s estimate of the acquisition date fair values of the assets acquired and the liabilities assumed, as follows (in thousands):

Goodwill represented the excess of the purchase price over the fair value of the net assets acquired and was primarily attributable to the expected synergies from potential monetization opportunities and from integrating Grohmann’s technology into our automotive business as well as the acquired talent. Goodwill is not deductible for U.S. income tax purposes and is not amortized. Rather, we assess goodwill for impairment annually in the fourth quarter, or more frequently if events or changes in circumstances indicate that it might be impaired, by comparing its carrying value to the reporting unit’s fair value.

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Grohmann’s results of operations since the acquisition date have been included within the automotive segment in our consolidated statements of operations. Actual and pro forma results of operations have not been separately presented because they were not material to our consolidated financial statements.

SolarCity Acquisition

On November 21, 2016, we completed our acquisition of SolarCity for a total purchase price of $2.1 billion in stock . We are currently finalizing our estimates of the fair values of the solar energy systems, leased and to be leased, identifiable intangible assets, deferred revenue, deferred taxes and noncontrolling interests assumed . Fair value adjustments recorded during the measurement period (a period not to exceed 12 months) may have a material impact on our consolidated financial statements. During the three months ended March 31, 2017, we recorded an $11.6 million measurement period adjustment to the acquisition date fair values of certain assets as previously reported in our Form 10-K for the year ended December 31, 2016. Additionally, during the three months ended September 30, 2017, we recorded an $18.2 million measurement period adjustment to the acquisition date fair values of certain liabilities as previously reported in our Form 10-K for the year ended December 31, 2016. The measurement period adjustments were recorded as losses to other income (expense), net, in our consolidated statement of operations, to effectively reduce the gain on acquisition initially recognized during the period ended December 31, 2016.

Note 4 – Goodwill and Intangible Assets

Goodwill increased to $45.2 million from December 31, 2016 to September 30, 2017 due to our acquisition of Grohmann and the impact of foreign currency translation adjustments.

Information regarding our acquired intangible assets was as follows (in thousands):

The in-process research and development (“IPR&D”), which we acquired from SolarCity, is accounted for as an indefinite-lived asset until the completion or abandonment of the associated research and development efforts. If the research and development efforts are successfully completed and commercial feasibility is reached, the IPR&D would be amortized over its then estimated useful life. If the research and development efforts are not completed or are abandoned, the IPR&D might be impaired. The fair value of the IPR&D was estimated using the replacement cost method under the cost approach, based on the historical acquisition costs and expenses of the technology adjusted for estimated developer’s profit, opportunity cost and obsolescence factor. We expect to complete the research

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and development efforts by the end of 2017, but there can be no assurance that the commercial feasibility will be achieved. The nature of the research and development efforts consists principally of planning, des igning and testing the technology for viability in manufacturing. If commercial feasibility is not achieved, we would likely look to other alternative technologies.

Total future amortization expense for intangible assets was estimated as follows (in thousands):

Note 5 – Fair Value of Financial Instruments

ASC 820 , Fair Value Measurements , states that fair value is an exit price, representing the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. As such, fair value is a market-based measurement that should be determined based on assumptions that market participants would use in pricing an asset or a liability . The three-tiered fair value hierarchy, which prioritizes which inputs should be used in measuring fair value, is comprised of: (Level I) observable inputs such as quoted prices in active markets; (Level II) inputs other than quoted prices in active markets that are observable either directly or indirectly and (Level III) unobservable inputs for which there is little or no market data. The fair value hierarchy requires the use of observable market data when available in determining fair value. Our assets and liabilities that were measured at fair value on a recurring basis were as follows (in thousands):

All of our cash equivalents were classified within Level I of the fair value hierarchy because they were valued using quoted prices in active markets. Our interest rate swaps were classified within Level II of the fair value hierarchy because they were valued using alternative pricing sources or models that utilized market observable inputs, including current and forward interest rates. During the nine months ended September 30, 2017, there were no transfers between the levels of the fair value hierarchy.

Interest Rate Swaps

We enter into fixed-for-floating interest rate swap agreements to swap variable interest payments on certain debt for fixed interest payments, as required by certain of our lenders. We do not designate our interest rate swaps as hedging instruments. Accordingly, our interest rate swaps are recorded at fair value on the consolidated balance sheets within other assets or other long-term liabilities, with any changes in their fair values recognized as other income (expense), net, in the consolidated statements of operations and with any cash flows recognized as investing activities in the consolidated statements of cash flows. Our interest rate swaps outstanding were as follows as of September 30, 2017 (in thousands):

Disclosure of Fair Values

Our financial instruments that are not re-measured at fair value include accounts receivable, MyPower customer notes receivable, rebates receivable, accounts payable, accrued liabilities, customer deposits, convertible senior notes, the 5.30% Senior Notes due in 2025, the participation interest, solar asset-backed notes, solar loan-backed notes, Solar Bonds and long-term debt. The carrying values of these financial instruments other than the convertible senior notes, the 5.30% Senior Notes due in 2025, the participation interest, the solar asset-backed notes and the solar loan-backed notes approximate their fair values.

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We estimate the fair value of the convertible senior notes and the 5.3 0 % Senior Notes due in 2025 using commonly accepted val uation methodologies and market-based risk measurements that are indirectly observable, such as credit risk (Level II) . In addition, we estimate the fair value of the participation interest, the solar asset-backed notes and the solar loan-backed notes base d on rates currently offered for instruments with similar maturities and terms (Level III). The following table presents the estimated fair values and the carrying values (in thousands):

Finished goods inventory included vehicles in transit to fulfill customer orders, new vehicles available for immediate sale at our retail and service center locations, used Tesla vehicles and energy storage products.

For solar energy systems, leased and to be leased, we commence transferring component parts from inventory to construction in progress, a component of solar energy systems, leased and to be leased, once a lease contract with a customer has been executed and installation has been initiated. Additional costs incurred on the leased systems, including labor and overhead, are recorded within construction in progress.

We write-down inventory for any excess or obsolete inventories or when we believe that the net realizable value of inventories is less than the carrying value. During the three and nine months ended September 30, 2017, we recorded write-downs of $26.2 million and $93.0 million, respectively, in cost of revenues. During the three and nine months ended September 30, 2016, we recorded write-downs of $14.9 million and $38.3 million, respectively, in cost of revenues.

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Construction in progress is primarily comprised of tooling and equipment related to the manufacturing of our vehicles and a portion of Gigafactory 1 construction. In addition, construction in progress also included certain build-to-suit lease costs incurred at our Buffalo manufacturing facility, referred to as Gigafactory 2. Completed assets are transferred to their respective asset classes, and depreciation begins when an asset is ready for its intended use. Interest on outstanding debt is capitalized during periods of significant capital asset construction and amortized over the useful lives of the related assets. During the three and nine months ended September 30, 2017, we capitalized $37.3 million and $96.0 million, respectively, of interest. During the three and nine months ended September 30, 2016, we capitalized $11.4 million and $30.4 million, respectively, of interest.

As of September 30, 2017 and December 31, 2016, the table above included $1.59 billion and $1.32 billion, respectively, of build-to-suit lease assets. As of September 30, 2017 and December 31, 2016, the corresponding financing liabilities of $17.5 million and $3.8 million, respectively, were recorded in accrued liabilities and $1.62 billion and $1.32 billion, respectively, were recorded in other long-term liabilities.

Depreciation and amortization expense during the three and nine months ended September 30, 2017 was $197.5 million and $534.2 million, respectively. Depreciation and amortization expense during the three and nine months ended September 30, 2016 was $126.8 million and $337.9 million. Gross property and equipment under capital leases as of September 30, 2017 and December 31, 2016 was $612.3 million and $112.6 million, respectively. Accumulated depreciation on property and equipment under capital leases as of these dates was $88.3 million and $40.2 million, respectively.

We had cumulatively capitalized costs of $2.85 billion and $1.04 billion, respectively, for Gigafactory 1 as of September 30, 2017 and December 31, 2016.