They weren't real specific, but said something about problems with the electronically controlled throttle module. (Appearantly there is no mechanical cable or linkage between the gas pedal and the throttle body, but rather a "fly-by-wire" type of electrical servo.) All I know is that I said "So, it sounds as though you would prefer to own a 5 cylinder turbo over a 6 cylinder NA," and he said "Definitely!" Also, keep in mind the 6 will be a tighter fit in the shoe box, undoubtedly making timing belt/seals/water pump changes a bit less enjoyable. I think I read somewhere that you remove the FR wheel in order to perform some of the maintenance on the (front end??) of the engine. It's likely that the mechanics complaints about the earlier years has more to do with chassis or engine management electricals than with the basic engine itself.

We still have the 90 740, so you might say we've got one foot in each boat. After 15 years with the same car it's tough to make a blind leap of faith into a new one.