Check out video from this recent track event. You have all the usual suspects, like an Audi R8, a Porsche 911, a Ferrari 348, and of course, an Isdera Imperator 108i. Duh! Can't have a track day without one of those.
What, you've never heard of the Isdera Imperator 108i? If you're not in the know, Isdera was a company founded in the late 1960s by a guy named Eberhard Schultz, an ex-design engineer for Mercedes-Benz. He made all kinds of crazy stuff, including an awesome 190E hatchback. His firm also developed the stylish CW 311 concept car for Mercedes.