It depends how well you treat your car dude, how often you service it and so forth. it can last a long time if taken care of, but if abused its just gonna fail on you... quite simple really. Its also how much pressure you put on the motor obviously the motors are going through alot of stress producing that sort of power, so it comes back to how much sheet you give it to how much stress you put back on it.
Angry13 & RoiBoi drive there cars everyday (almost) yes they give it sheet now and then, but the cars are that well looked after nothing mechanicly in the motor fails. hehehe.. well its