 The improvements included revised suspension to improve ride and handling, a few cosmetic changes and the availability of new options such as cruise control.However, one of the biggest changes were a series of engine upgrades which included redesigned cylinder heads, now with a single intake and exhaust port for every cylinder, improved intake/exhaust manifolds, new camshafts and pistons and an all-new carburettor called the Rochester Varajet, as well as the fitment of electronic ignition.In total, these upgrades brought up to 25 percent more power and 15 percent better fuel efficiency.