The 917 was one of the scariest and most revered, successful and beautifully purposeful Porsches ever made. It dominated Le Mans in the early seventies, made waves in Can-Am and was immortalised by Steve McQueen in the movie Le Mans. One lunatic customer even managed to get one road-registered.
Here's some compelling footage, capturing the essence of the model in its heyday:
I'll take mine in Gulf livery, please.