The 2008 Chevrolet HHR is available as a 4-door, 5-seat sport utility. Starting at $16,730, the 2008 Chevrolet HHR LS is powered by a 2.2L, 4-cylinder engine mated to a manual transmission that returns an EPA estimated 21-mpg in the city and 30-mpg on the highway. The top of the line 2008 Chevrolet HHR SS, priced at $22,925, is powered by a 2.0L, 4-cylinder engine mated to a manual transmission that returns an EPA estimated 21-mpg in the city and 29-mpg on the highway.