Car of Tomorrow - Wikipedia.com

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The Car of Tomorrow (CoT), sometimes called CoT or "Car of Today",[1] is the car style for the NASCAR Sprint Cup Series. Larger and boxier than the design it replaced, the Car of Tomorrow is safer, costs less to maintain, and makes for closer competition.

The car was introduced in the 2007 Cup season at the Food City 500 on March 25 and ran a partial schedule of 16 races. The plan was to require all teams to use the new car in 2009, but NASCAR officials moved the date up to the 2008 season.