I've tried to do my homework - digging through the archives and such. Seems like a lot of people have a vague warning of "expensive!" when prospective buyers are asking around.
But on a well maintained car with reciepts, and the items I listed above recently done, what else should I look for?
What /is/ so expensive, anyway? Valve adjustment? I'm just trying to get details here. I don't mind a car that requires some interaction (having owned, in the last few years, a '76 and '74 2002, a '70 and '68 1600-2, a '74 3.0s, and an '82 320i) but I'm trying to determine just what fails and why it costs so much. It IS, after all, a (as I understand it) relatively simple 4 cylinder, albeit extremely hot.
Thanks a lot.