i'm not going to be all holier than thou - i've had experiences much like the OP's and paid the price for them.
but some of the cavalier attitudes about speeding in this thread surprise me. the M3 is a fantastic car, yes, and you may think of yourself as an excellent driver, but no one is invincible. if the best driver who ever lived can lose his life speeding in the most controlled conditions, in a car with the most advanced safety equipment of his time....you can too.
(talking about Senna in case it wasn't obvious, and at risk of sparking a debate on who the best ever was