The exterior of the '11 SMS 302 is left stock by SuperCars of America. Why mess with a good thing? The SMS-added body panels are made from Reaction injection-molded plastic. These components include the front and rear bumper covers, side skirts, front splitter, rear diffuser, and the high-downforce rear spoiler. No doubt, the spoiler will be put to the test on the roads of Europe. Steve Saleen says the body panels go through a rigorous test to make sure it's the most aerodynamic package available for the car. "The '11 SMS exterior package should be right at home on the Autobahn," Steve says. The SMS five-spoke wheels are wrapped in Pirelli P-Zero treads.