The 2000 Mercedes-Benz CLK-Class is available as a 2-door, 4-seat coupe. Starting at $41,600, the 2000 Mercedes-Benz CLK-Class Coupe is powered by a 3.2L , 6 -cylinder engine mated to an automatic transmission that returns an EPA estimated 21-mpg in the city and 29-mpg on the highway. The top of the line 2000Mercedes-BenzCLK-ClassConvertible , priced at $ 55,600 , is powered by a 4.3L , 8 - cylinder engine mated to an automatic transmission that returns an EPA estimated 17-mpg in the city and 24-mpg on the highway.