2004 Audi A2H2 Concept
When Audi launched the A2 in 2000, the automotive world paused for a moment to catch a glimpse of what the best had to offer. Many weren't quite sure what to think of Audi's latest work of mechanical genius. It was Volkswagen division's smallest production car, and featured a tiny 1.4-litre direct injection gasoline and turbo diesel inline-four, but at the same time it featured an interior crafted of the same high-grade materials used in the A6 and A8 and was the only mass-produced car to have a light, strong all-aluminum ASF space frame body.