I have an E34 ('95) 525i with just over 140k on it. I drive fairly aggressively (you have to in Detroit!), meaning that I floor it for brief periods at least once or twice a day, and in general use the potential of the car to its fullest. I love doing this, as it's great fun and quite practical in city driving, but I worry about running my engine down. Is this driving style going to significantly tire my car? If so, in what time/mileage frame? TIA.