Tuner Brabus is known for enhancing performance in Mercedes models. The Bottrop company hasn't shied away from the little Smart, either. The exterior of the souped-up midgets differs from their standard counterparts with improved aerodynamics and a brawnier design.The Smart Brabus's driving performance can't measure up to a real sports car, of course, but the point here is the fun, not the sport of racing. Drive it! checked out the Brabus Smart on a racetrack, on a country road, and on the Autobahn.