The surge in new car sales sparked by zero interest loans has also created some good buying opportunities on dealers' used car lots, according to the Chattanooga Times.

As buyers take advantage of Detroit's no-interest financing options on many new models, used-car lots are filling up with trade-ins and values of many late-model vehicles are plummeting.

"We're up to our eyeballs in used cars," said Grant Law, general manager of Newton Chevrolet and president of the Chattanooga Area Automotive Dealers Association. "Like most

dealers, we've probably got a third more used cars than normal since the zero interest loans brought in a lot of new car sales and trade-ins of older models."