The 2008 Chevrolet Cobalt is available as a 4-door, 5-seat sedan. Starting at $14,410, the 2008 Chevrolet Cobalt LS Sedan is powered by a 2.2L, 4-cylinder engine mated to a manual transmission that returns an EPA estimated 25-mpg in the city and 36-mpg on the highway. The top of the line 2008 Chevrolet Cobalt SS Turbocharged Coupe, priced at $22,335, is powered by a 2.0L, 4-cylinder engine mated to a manual transmission that returns an EPA estimated 22-mpg in the city and 30-mpg on the highway.