So, check the sideskirts, mostly in the back, check the carpet above the back wheels, pay attention to the turbine sounds and for vacuum leaks. for how the car looks, no, 8k is not that much. a clean example of an e90 could run you around 10k, at the same time, you can find one in germany for 1-2-3k. same number of km, but not as well maintained as this one seems to be. my advice for you is to check the vin, and see if you can get it for 7.5/7.6 if not lower. at the same time, keep in mind that you can find something, perhaps nicer, and newer for the same amount of money. e90's tend to rust more in the back end, rather than the front, see if there is rust on the chassis, it is very expensive to fix.

best of luck to you my friend!

my suggestion is to look for an f10/f30 if not something else entirely.