In Reply to: 88 M5 vs. 90 535i posted by bstaudt on June 24, 1999 at 10:54:41:
Depends what you want. The 535 will be nicer to drive everyday. Much more refined in many ways - it's a newer chassis generation. Less expensive to maintain. You won't miss the extra power unless you track or autocross.
The M5 is better for the track. It's rougher in many ways - remember this is all relative, my M5 is far more sophisticated than my Plymouth Voyager - and more expensive to maintain. Sometimes. Shared many parts with the E28 535, but different shocks, springs, sway bars, brakes, master cylinder, radiator, motor mounts, water pump yada yada yada.
The M5 will keep a greater portion of its value for longer. But that's years away.
If (when) you need to rebuild the engine you can spend $10,000 with little trouble for a rebuilt S38 (Metric Mechanic, Korman etc). For that kind of money you could swap out the big six from the 535 for a 3 or 4 liter V8 from a newer E34. Then you can go very fast. :)))
I love my M5. I never wish I had bought an E34. But I found a '94 530 for my Dad and it's a great car, I wish I had one of those too, as my wife's car. Then I might get to drive the M5 more often.