Thanks guys, I'm pretty happy with the purchase.
Now, it's not without fault. While it is very clean, had a big-ish overhaul just around 8kkm ago, and mostly rust free, it does have a ticking/rattling sound at the front of the engine. It's very hard to localize, but it's possible that VANOS unit is the source. While failure appears not to be fatal for the engine, it's still a costly procedure to let professionals repair the VANOS. Another possible source is the crank pulley. The bolt in front of the engine may be loose, because the toothed wheel and the pulley do have a bit of play in them. I plan to show it to some bmw experts tomorrow, hoping that tightening the bolt will solve the noise. Can't really do it myself, the bastard is torqued to something like 420 Nm.
The colour should be evident from the photo, Heathrow, I moved the sliders in photoshop until it looked realistic
Of course under sodium lamp it's not going to be perfect, but the car is dark blue.
The wheels, while in my opinion ugly, will stay. These are just for the winter anyway. I haven't actually seen the summer wheels yet, the previous owner will deliver those later.