http://fiat500usa.com/ The US Fiat 500 and Fiat 500 Abarth uses MultiAir valvetrain technology. This innovative design is best described as "variable valve timing on steroids." Watch the video, and see how excellent fuel economy and exhaust emissions can all be achieved while at the same time enjoying maximum performance. MultiAir in particular boosts low and mid range torque during part throttle operation, guaranteeing a car that is fun to drive. Learn more here: http://www.fiat500usa.com/search/label/Fiat%20Multiair
