CarMax Launches Car Giveaway on Twitter

Prizes Include $250 Gas Cards

RICHMOND, Va. (January 4, 2010) - CarMax, Inc. (NYSE: KMX) the nation's largest retailer of used cars, has launched a contest on the social networking site Twitter, to award one lucky winner $25,000 towards the purchase of a used vehicle from CarMax's nationwide inventory. Contestants are encouraged to visit http://www.carmax.com/tweet to find the specific phrase to tweet, which will automatically enter them in the contest.

The "Tweet Yourself to a New Ride" contest will run for eight weeks and, in addition to the grand prize, will award gas cards valued at $250 each to eight separate randomly selected entries. A full list of rules and regulations, as well as frequently asked questions can be found on the contest page, www.carmax.com/tweet.

"Giving away a late-model, fully-reconditioned CarMax vehicle is an excellent way to draw attention to both our great cars and our efforts on Twitter," said Joe Kunkel, senior vice president of marketing and strategy. "This Twitter contest is a fun way to promote our brand and to share our story with car shoppers who haven't previously heard about us."

Twitter is a free, social networking website that enables its users to send and read 140 character messages known as tweets. CarMax uses Twitter to share information about CarMax, car buying tips and auto industry news.

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