2005 smart forfour Brabus Concept

Behold the world's most powerful smart. The forfour (deliberately lowercase) Brabus concept is a full-out racing conversion of the compact forfour, which was shown at this year's Essen tuning show in Germany. It's surprising to see such a conversion concept from a firm that, for the better part produces the world's smallest cars, powered by puttering little diesels that generate two-figure output levels. By comparison, this one's a screamer.