CHARLOTTE, N.C. - NASCAR will use the Car of Tomorrow exclusively in 2008, a year earlier than planned. The COT was scheduled to run 16 races this season and be phased into competition during the next two years. But costs skyrocketed while car owners tried to maintain two programs — the current car, and the COT — and NASCAR said Wednesday it will move up the date if teams agreed. "The majority of car owners actually came to us and said 'Now that we are up and running the car, it doesn't make sense to have two parallel programs moving...