Being nosey (and distressed at having paid a lot more for mine 12 months ago) I made a call to the dealer, he's a bit vague about the car, it's got no history with it other than a couple of old MOTs, and has had quote "a little front end accident, only a bumper and wing I think, but it drives great".
Cheap for sure, but eyes wide open on this one :!: Pay for a history check, contact the previous keeper, check the engine & VIN numbers against the book, MOT & the results of the history check (docs get forged), check history with BMW. Get it inspected if you are not an expert and walk if you get resistance, bull, or don't get all the answers :!: