I'm looking at second hand X5s at the moment and it's a little hard to tell from the low resolution photos if the cars have rear climate or not. It's obvious if there's no rear DVD - basically if there are any dials there then it's got rear climate controls but if it has the rear DVD, it seems to add all kind of dials anyway. I'd rather have a car without the rear DVD setup but if it's got rear climate, that could make up for it.
For example, see this cropped photo:
link Does that look like it's got rear climate or just rear DVD?