have only payed for oil change for over a year, not a single problem ( got 2001 model )...
don't think there's a 2000 M3, new body style starts from 2001 unless you talking about e36...
main comon problems with 2001+ bm's:
-cam shaft sensor
-water pump
-arm bushings
-overboosted steering wheel
if the car been taken care of it will run forever just little things like window regulators, etc might need to be replaced.
good luck
