The 2007 Mercedes-Benz CLS-Class is available as a 4-door, 4-seat sedan. Starting at $66,900, the 2007 Mercedes-Benz CLS-Class CLS 550 Coupe is powered by a 5.5L, 8-cylinder engine mated to an automatic transmission that returns an EPA estimated 15-mpg in the city and 22-mpg on the highway. The top of the line 2007 Mercedes-Benz CLS-Class CLS 63 AMG Coupe, priced at $92,200, is powered by a 6.2L, 8-cylinder engine mated to an automatic transmission that returns an EPA estimated 13-mpg in the city and 20-mpg on the highway.