DealerTrack Ranks High on Baseline Magazine's List of 50 Fastest-Growing Software Companies

LAKE SUCCESS, N.Y., Oct. 17, 2006 -- DealerTrack Holdings, Inc. , a leading provider of on-demand software, network and data solutions for the automotive retail industry in the United States, today announced that Baseline Magazine has ranked the Company eleventh on its 50 Fastest-Growing Software Companies List.

"This award is a testament to the growth of DealerTrack and to the power of the network we have built connecting automotive dealers with financing sources and other service providers," said Mark O'Neil, chairman and chief executive officer of DealerTrack. "We plan to continue growing by adding more network participants as well as complementary products and services."

Baseline Magazine, established in 2001 for senior IT and corporate management business leaders, created the 50 Fastest-Growing Software Companies list by compiling a list of 304 publicly held software companies from various sources. The companies were then ranked according to year-to-year revenue growth from 2004 to 2005. Only companies that generated more than $10 million in revenue in the calendar years 2004 and 2005 were considered.

DealerTrack, ranked eleventh, posted a 71.6% revenue increase in 2005. The complete list of the awards is available at www.baselinemag.com.

About DealerTrack (www.dealertrack.com)

DealerTrack Holdings, Inc. is a leading provider of on- demand software, network and data solutions for the automotive retail industry in the United States. DealerTrack's online credit application processing product automates and accelerates the automotive financing process, while its integrated subscription-based software enables dealers to receive consumer leads, compare financing and leasing options, sell insurance and other aftermarket products, document compliance, and execute financing contracts electronically. Over 22,000 dealers, with more than 85% of all franchised dealers in the United States; over 250 financing sources, including nine captives and the 20 largest U.S. independents; and other service and information providers are active in the DealerTrack network.

Safe Harbor for Forward-Looking and Cautionary Statements

Statements in this press release regarding DealerTrack, the power of the network, plans for future growth, the addition of additional network participants and products and all other statements in this release other than the recitation of historical facts are forward-looking statements (as defined in the Private Securities Litigation Reform Act of 1995). These statements involve a number of risks, uncertainties and other factors that could cause actual results, performance or achievements of DealerTrack to be materially different from any future results, performance or achievements expressed or implied by these forward-looking statements.

Factors that might cause such a difference include: increased competitive pressure from other industry participants, the inability to execute any element of DealerTrack's business strategy, including the retention of dealers and financing source customers; selling additional products and services to existing and new customers; DealerTrack's success in expanding its customer base and product and service offerings and integrating acquisitions; the impact of the automotive retail industry on DealerTrack's business; the impact of some vendors of software products for automotive dealers making it more difficult for our customers to use our products and services, and other risks listed in DealerTrack's reports filed with the SEC, including its Annual Report on Form 10-K for the year ended December 31, 2005. These filings can be found on DealerTrack's website at www.dealertrack.com and the SEC's website at www.sec.gov. Forward-looking statements included herein speak only as of the date hereof and the Company disclaims any obligation to revise or update such statements to reflect events or circumstances after the date hereof or to reflect the occurrence of unanticipated events or circumstances.

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