I'd be buying one with under 30k on it. I really don't care on the costs of the maintenance/repairs as long as they aren't constant.
I don't know why you keep throwing up a 1999 CL, sounds like some personal issue you have. I'd never drive a CL.
BTW keep on trolling me in Garage with insults and I will have you slapped.
Do you even own an M3? If not and anyone that doesn't should just skip this thread.
I'm only poking at you alky, don't get your feelings hurt. If anything you're the one who is dragging your own thread off topic. And have me slapped.. Wow lol...
In all seriousness, my car has the same engine and similar electronics (I believe). I've had some quirky issues.. Radio amplifier has gone bad, it's $700 from the dealer. The electronics in the car are difficult to diagnose yourself, of course there's tons of forum support so it's not hard to figure out but meanwhile your DD is down and you might end up having to take it to a shop anyway.
Valve adjustment is every 25k miles or so, it's not impossible to do yourself but is one of those things that I personally would rather find a good shop to do. Most need rear tires about that time as well. I dunno about the m3, but my car won't go over parking curbs which is a PITA sometimes. I rarely drive it in the rain but it handles fine.
The ride is stiff, it's fun to drive 90% of the time but it's really nice to have something else for that other 10%. Mine rattles a good bit, although they're all common places (cupholders, trunk shade) that I just need to track down and tape seams.