It's an 88 750il to be exact. It's my dads and has been parked for about a year and a half. It's issues are as follows: 1) it was parked because of some sort of running issue my dad says it started but then the engine kind of just revved but didn't quite engage or something of the sorts. I understand that this particular issue is not easy to diagnose from far away but just mentioning it. 2)all four window motors don't work. This a big issue as the ac also doesn't work. Is there an aftermarket motor that world be cheaper than the overpriced BMW OEM? 3) the ac doesn't work. I would probably fix the windows so its at least drivable first but what's the point of a luxury cat without climate control? Is this ac unit at all serviceable? Any thoughts and advice are greatly appreciated and anyone in the Austin area who wanted to drop by with and take alook is of course welcome beverages and snacks would of course be provided.