The 2003 Chevrolet Corvette is available as a 2-door, 2-seat coupe. Starting at $43,635, the 2003 Chevrolet Corvette Base Coupe is powered by a 5.7L, 8-cylinder engine mated to an automatic transmission that returns an EPA estimated 18-mpg in the city and 25-mpg on the highway. The top of the line 2003 Chevrolet Corvette Convertible, priced at $50,535, is powered by a 5.7L, 8-cylinder engine mated to an automatic transmission that returns an EPA estimated 18-mpg in the city and 25-mpg on the highway.