Really like these print ads for Lamborghini. Love the combination of quotes from various car reviews and the rather graphic illustrations. Makes for an interesting take on your average bollocksy car ad.
The interestingly named Piss Screen is from 2007, but I only heard about it recently. Aimed at encouraging drunk people to take a taxi instead of drive home, Piss Screen lets men play a car racing game, like Need for Speed, using their wee, and just their wee. There's a video further down.
The idea is that if you can't control the car on screen, you can't control your own car, and therefore should give Frankfurt Taxi Services a call.
Thankfully they didn't come up with a women's version. God only knows the queues are long enough as it is.