A 4-wheel independent spring suspension system marked the latest innovation for the Hess Truck Series. The 2011 Hess Flatbed Utility Truck and Stock car also conceals a pull down driving ramp that makes a hydraulic sound, and carries a stock car racer on the back. The truck is loaded with chrome accents, has 34 functioning lights (steady or flashing modes) that are button controlled, and it makes 4 sounds: ignition, back up alert, hydraulic ramp sound, and a horn, all activated by a button. The racecar is a pullback friction powered toy with working lights and 4 different motor sounds. Hess made 1,800,000 units for the 2011 holiday season.