There was a Focus that went round - he trashed his brakes.
Good fun, but ended up crashing the afore mentioned Merc at 100mph+ into an armco (I wasn't driving, the owner was - it hurt, but no one was properly injured). I also got to drive a Porsche 928 4.7 V8, which was scary as hell. And then was in an accident involving a SSC Stylus kit car (he was taking me for a passenger lap).
Then, to add insult to injury, my tent decided that it didn't like being waterproof, and during one hell of a storm that lasted 2 days, let all the water through, soaking me and all my belongings. Wearing only wet clothes for 2 days is not fun!
If anyone watches that episode of Top Gear where Clarkson goes round in a Jaguar S-Type diesel, you'll see him get overtaken by a Mercedes 190 Evo 1 - I went round as a passenger of the owner of that car, in that car. It's awesome, the handling is spot on, and it's very quick too!