I would pass on any M car out of warranty. My friend leased an 09 M5 and he's glad that he didn't buy it. The car had all sorts of little electrical issues last year. Had he bought it and had it been out of warranty he would be spending some serious cash to get it all fixed. We feel bad for who ever buys this thing now.
You can detect right away those that are going to be shaky, and that will fall behind and those that are very hungry, and that hunger you will have to develop. You gotta create a goal for yourself whatever that may be, a short term goal and a long term goal and you gotta go after that. And if you donít see it, and if you donít believe it, who else will?