The HHR is Chevrolet’s new type of compact vehicle, which Chevrolet describes as combining the styling of the SSR roadster truck with a 1949 Suburban for a unique style. Built on the same platform as the Chevrolet Cobalt, the HHR debuted for 2006 offering 5-passenger seating with reconfigurable cargo capacity, including a fold-flat front passenger seat. For 2007, the HHR Panel was added as a unique cargo vehicle that features windowless side panels, rear cargo doors, seating for two and a large flat cargo floor. The OnStar advanced communication system comes standard on the Chevrolet HHR