The warranty was up on my 08 M3 this past June. I decided to pass on the extended warranty. I have 37k miles now. I am the original owner so I know how the car has been driven and taken care of. There may be repairs needed in the future but I just couldnt see paying over $5k for 3 years of possible problems.
2008 M3 Sedan, Silverstone II, Fox Red Extended, 6MT