Exhibit 99.3

UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL INFORMATION

On November 21, 2012, General Motors Financial Company, Inc. (“GM Financial”) and Ally Financial Inc. (“Ally”) announced agreements to acquire Ally’s auto finance and financial services operations in Europe and Latin America and its non-controlling 40% equity interest in GMAC-SAIC Automotive Finance Company Limited (“GMAC-SAIC”), which conducts auto finance and financial services business in China (collectively, the “International Operations”).

On April 1, 2013, GM Financial and Ally completed a transaction under which GM Financial acquired Ally’s equity interests in its top-level holding companies that comprise substantially all of Ally’s auto finance and financial services business in Europe other than in France and Portugal and in Latin America other than Brazil, pursuant to the Purchase and Sale Agreement entered into on November 21, 2012, as subsequently amended and restated on February 22, 2013 (the “PSA”). The purchase price was approximately $2.4 billion.

On May 14, 2013, GM Financial issued and sold $1.0 billion in aggregate principal amount of 2.75% Senior Notes due 2016 (the “2016 Notes”), $750 million in aggregate principal amount of 3.25% Senior Notes due 2018 (the “2018 Notes”) and $750 million in aggregate principal amount of 4.25% Senior Notes due 2023 (the “2023 Notes” and, together with the 2016 Notes and the 2018 Notes, the “Notes”).

On June 3, 2013, GM Financial and Ally completed a transaction under which GM Financial acquired, effective as of June 1, 2013, Ally’s equity interests in its companies that comprise Ally’s auto finance and financial services business in France and Portugal (together, with Ally businesses acquired on April 1, 2013, the “Previously Acquired International Operations”), pursuant to the PSA. The purchase price was approximately $150 million.

On October 1, 2013, GM Financial and Ally completed a transaction under which GM Financial acquired Ally’s equity interests in its companies that comprise Ally’s auto finance and financial services business in Brazil. The auto finance and financial services business acquired in Brazil are referred to in this Unaudited Pro Forma Condensed Combined Financial Information section as the “Brazil International Operations.” The purchase price, based on preliminary closing Net Assets Statement, was approximately $0.7 billion, subject to possible adjustments provided in the PSA.

As of October 1, 2013, the acquisition of GM Financial of Ally’s non-controlling 40% equity interest in GMAC-SAIC is expected to be completed in 2014 or as soon as practicable thereafter. The non-controlling 40% equity interest in GMAC-SAIC is referred to in this Unaudited Pro Forma Condensed Combined Financial Information section as the “China International Operations.”

GM Financial is the wholly-owned captive finance subsidiary of General Motors Company (“GM”). Ally has historically provided a majority of the financing for GM’s dealers and a significant portion of the financing for its customers in the U.S. and Canada and other major international markets where it operates including through the operations that are the subject of the transactions described herein. Historically, Ally has been GM’s primary financing partner for incentivized retail financing programs in its major markets. The purchase price was determined based on arm’s length negotiations.

The pro forma financial information set forth herein gives effect to the following events (collectively, the “Transactions”):

The unaudited pro forma condensed combined balance sheet gives effect to these events as if they had occurred on September 30, 2013. The unaudited pro forma condensed combined statements of income give effect to these events as if they had occurred on January 1, 2012.

The unaudited pro forma condensed combined financial information included herein is derived from the historical financial statements of GM Financial and the International Operations and include adjustments which give effect to events that are (i) directly attributable to the Transactions, (ii) expected to have continued impact on GM Financial, (iii) factually supportable, and (iv) not reflected in the historical financial statements as of and for the period ended September 30, 2013. Refer to the section entitled “Notes to Unaudited Pro Forma Condensed Combined Financial Statements.”

The unaudited pro forma condensed combined balance sheet includes certain pro forma adjustments to reflect the estimated impact of the consummation of the acquisition of Ally’s auto finance and financial services business in Brazil, assuming this acquisition occurred on September 30, 2013. There are no pro forma adjustments related to the acquisitions of the Previously Acquired International Operations, as these acquisitions were consummated prior to September 30, 2013 and the effects of these acquisitions are reflected in the historical balance sheet as of September 30, 2013 included within GM Financial’s Form 10-Q for the corresponding period.

The unaudited pro forma condensed combined statement of income for the year ended December 31, 2012 include certain pro forma adjustments to reflect the impact of the consummated acquisitions of the Previously Acquired International Operations and the consummation of the acquisition of Ally’s auto finance and financial services business in Brazil, assuming these acquisitions occurred on January 1, 2012.

The unaudited pro forma condensed combined statement of income for the nine months ended September 30, 2013 includes certain pro forma adjustments to reflect the impact of the consummated acquisitions of the Previously Acquired International Operations and the consummation of the acquisition of Ally’s auto finance and financial services business in Brazil, assuming these acquisitions occurred on January 1, 2012, to the extent the impact of the acquisitions of the Previously Acquired International Operations have not been reflected in the historical statement of income for the nine months ended September 30, 2013 included within GM Financial’s Form 10-Q for the corresponding period.

GM Financial has not finalized its purchase price allocation with respect to the Previously Acquired International Operations’ assets acquired and liabilities assumed at their fair values, as disclosed in Note 2 to the unaudited condensed financial statements included in GM Financial’s most recent Form 10-Q. Adjustments and amounts reflected within the unaudited pro forma condensed combined financial information related to the Brazil International Operations are management’s estimates based on available information. Accordingly, as described in Note 2 below, the unaudited pro forma condensed combined financial statements include preliminary allocations of the purchase price to reflect the estimated fair values of certain assets and liabilities expected to be acquired in connection with the consummation of the acquisition of Ally’s auto finance and financial services business in Brazil.

The unaudited pro forma condensed combined financial statements:

General Motors Financial Company, Inc.

Unaudited Pro Forma Condensed Combined Balance Sheet

As of September 30, 2013

The following preliminary unaudited pro forma condensed combined balance sheet combines the historical balance sheets of the Brazil International Operations and GM Financial on an acquisition accounting basis assuming that the acquisition of the Brazil International Operations was completed on September 30, 2013.

See accompanying notes to unaudited pro forma condensed combined financial statements

General Motors Financial Company, Inc.

Unaudited Pro Forma Condensed Combined Statement of Income

For the Year Ended December 31, 2012

The following preliminary unaudited pro forma condensed combined statement of income combines the historical statements of income of the International Operations and GM Financial on an acquisition accounting basis assuming that the Transactions were completed on January 1, 2012.

See accompanying notes to unaudited pro forma condensed combined financial statements

General Motors Financial Company, Inc.

Unaudited Pro Forma Condensed Combined Statement of Income

For the Nine Months Ended September 30, 2013

The following preliminary unaudited pro forma condensed combined statement of income combines the historical statements of income of the International Operations and GM Financial on an acquisition accounting basis assuming that the Transactions were completed on January 1, 2012.

General Motors Financial Company, Inc.

Notes to Unaudited Pro Forma Condensed Combined Financial Statements

For the Period Ended September 30, 2013

Note 1—Preliminary Purchase Accounting Allocation for the Brazil International Operations

The unaudited pro forma condensed combined financial information for the Transactions includes the unaudited pro forma condensed combined balance sheet as of September 30, 2013, assuming the acquisition of the Brazil International Operations occurred on September 30, 2013 on an acquisition accounting basis. The unaudited condensed combined statement of income for the year ended December 31, 2012 and the nine months ended September 30, 2013 assumes that the Transactions occurred on January 1, 2012 on an acquisition accounting basis.

The acquisition of the Brazil International Operations is being accounted for using the acquisition method of accounting; accordingly, GM Financial’s cost to acquire the Brazil International Operations will be allocated to the assets, including identifiable intangible assets, and liabilities of the Brazil International Operations at their respective estimated fair values as of acquisition date. The table below reflects the preliminary allocation of purchase price to the acquired assets and liabilities based on preliminary estimates of fair value.

Preliminary Purchase Price Allocation

Unaudited Condensed Combined Pro Forma Financial Information—as of September 30, 2013

The final allocation of the purchase price will be determined after completion of the acquisition of all of the China International Operations and final analysis to determine the fair values of the International Operations’ tangible and intangible assets and liabilities.

As disclosed in GM Financial’s Form 10-Q for the period ended September 30, 2013, the purchase price for the Previously Acquired International Operations was approximately $2.6 billion. The purchase price was allocated to the identifiable assets and liabilities assumed based upon their estimated fair values at the date of the acquisitions. The excess of the purchase price over the estimated fair values of the net assets acquired was recorded as goodwill in the amount of $48 million, but is subject to further adjustment pending the closing of the China International Operations, as well as any certain potential closing adjustments resulting from the finalization of closing balance sheet audits.

Based on preliminary estimates, management believes that upon completion of the acquisition of the China International Operations and finalization of the purchase price allocation, the total goodwill resulting from the acquisition of the International Operations will be between $115 million and $155 million.

Note 2—Basis of Pro Forma Presentation

The unaudited pro forma condensed combined financial information related to the Transactions is included as of September 30, 2013 and for the year and nine month periods ended December 31, 2012 and September 30, 2013, respectively. The acquisition is being accounted for under the purchase method of accounting in accordance with Accounting Standards Codification 805, Business Combinations.

The unaudited pro forma condensed combined financial information as of September 30, 2013 and for the year and nine months ended December 31, 2012 and September 30, 2013, respectively includes preliminary estimated adjustments to record the assets and liabilities of the International Operations at their respective estimated fair values and represents management’s estimates based on available information. Management utilized various valuation methodologies and models which it believes are reasonable. However other market participants could utilize different methodologies and models to arrive at different valuations. The pro forma adjustments included herein may be revised as additional information becomes available and additional analyses are performed. The final allocation of the purchase price will be determined after completion of the acquisition of all of the China International Operations and final analysis to determine the fair values of the International Operations’ tangible and intangible assets and liabilities.

Certain amounts in the historical consolidated financial statements of the International Operations have been reclassified to conform to GM Financial’s classification; refer to Note 5– Reclassification Adjustments for further information.

The unaudited pro forma condensed combined financial information is presented in accordance with the Securities Exchange Act of 1934, as amended, for illustrative purposes only and does not indicate the results of operations or the combined financial position that would have resulted had the Transactions been completed at the beginning for the applicable period presented, nor the impact of possible business model changes as a result of current market conditions which would impact revenues, performance of finance receivables, expense efficiencies, asset dispositions, and other factors.

Additionally, the unaudited pro forma condensed combined financial information is not indicative of the results of operations in future periods or the future financial position of the combined businesses.

Note 3—Transactions Not Completed as of the Date of this Filing

As of October 1, 2013, the acquisition by GM Financial of Ally’s non-controlling 40% equity interest in GMAC-SAIC, remained subject to certain regulatory approvals. These approvals include a new joint venture agreement with the other equity interest holders of GMAC-SAIC and the regulatory approvals of such agreement. We are currently negotiating the agreement and once complete it is expected to take approximately nine months for us to obtain regulatory approvals. The acquisition of the non-controlling 40% equity interest in GMAC-SAIC is expected to be completed in 2014 or as soon as practicable thereafter. The pro forma financial information does not give effect to the acquisition of Ally’s non-controlling 40% equity interest in GMAC-SAIC.

Note 4—Purchase Accounting and Acquisition Adjustment Descriptions

Note 5—Reclassification Adjustments

Unaudited Pro Forma Condensed Combined Balance Sheet: International Operations Reporting Reclassification Adjustments

As of September 30, 2013

See accompanying notes to unaudited pro forma condensed combined financial statements

Balance Sheet—International Operations Reclassification Adjustment Descriptions:

The following reclassifications have been made to the International Operations financial statements in order to conform to the GM Financial presentation:

Unaudited Pro Forma Condensed Combined Income Statement: International Operations Reporting Reclassification Adjustments

For the Year Ended December 31, 2012 

See accompanying notes to unaudited pro forma condensed combined financial statements

For the Nine Months Ended September 30, 2013

See accompanying notes to unaudited pro forma condensed combined financial statements

Income Statement—International Operations Reclassification Adjustment Descriptions:

The following reclassifications have been made to the International Operations’ financial statements in order to conform to the GM Financial presentation: