I have an 87 528e with 170,000 mi. Some problems but nothing major that I can't handle (used to be a mechanic). I have found an 89 535i with 150,000 miles on it for 5,900. My dad has a 94 740il. My question is how good is the 535i in regards to maintenance, performance, reliability? My car is relatively reliable for its age and high mileage. My dad however has been seeing a few large problems now and again. So I am curious, what would you all do? I would ask the e28 group (my usual group, but I see those are the wrong years to ask). Thanks for any help or advise.