Originally Posted by Reuben Lim
No E34 M5 has 400+ horses unless it's got some serious work done to it. It would have been 315 hp from the factory in the 3.6l, and the 93 3.8l had 340.
He may have the original clutch, the replacement ones have much less pedal effort required. M5's can be expensive to maintain, and even adjusting the valves can be expensive. Some people say there were a few auto M5's made but if it is true, there may be less than 5 out there.
MarkD