A stock E34 M5 will understeer on the track.To get it to oversteer or be neutral you will have to modify the suspension-get rid of the self leveling rear setup and install heavier swaybars and camber plates.I can get my car to oversteer with these mods and find it quite easy to control.I personally prefer the car to be more neutral which a stock M5 is not.By playing around with the swaybars and tire pressures the M5 is a blast on the track.