The 2010 Chevrolet HHR Panel is available as a 2-door, 2-seat sport utility. Starting at $20,030, the 2010 Chevrolet HHR Panel LT is powered by a 2.2L, 4-cylinder engine mated to a manual transmission that returns an EPA estimated 22-mpg in the city and 32-mpg on the highway. The top of the line 2010 Chevrolet HHR Panel LS, priced at $19,030, is powered by a 2.2L, 4-cylinder engine mated to a manual transmission that returns an EPA estimated 22-mpg in the city and 32-mpg on the highway.