Ya there nice looking, watch out for the clutch. BMW used the same clutch for the 540i as they did on the 525i and the 530i. Small clutch + big engine = o no!
another thing is, have you driven one?
They have those stupid lock valves that "smooth out" your clutch engagement.... aka makes your shifts slower.
Plus this is the time when BMW started making cars different for the us! A US e39 has about 2 1/2 in of more insulation in the dash to compensate for people not wearing seat belts (look at where the passanger side dash meets the door). I would look into a euro dash unless you want you passengers making out with your dash board.
MOREOVER, the e39 is much more isolated in terms of chassis response to the driver. My dad always complains about this all the time when going from his car to mine.
Another downside (one that is REALLY dumb) is the DSC. This is great when it is wet, not great 90% of the time. When pulling out into traffic, lets say the situation calls for hard acceleration. What does dsc do? hits the rear breaks to stop wheel spin and slows engine revs! leaving you stuck there with you foot to the floor and nothing happening! (true story, has happened more then once)
Those can be easily fixed,
but You do not have rack and pinion steering in the 540i.
The thing will not rev like an inline 6.
BUT! it is a BMW... meaning...YOU CANNOT GO WRONG!
Conforti chip, K&N filter, Racing-dyn sways, EBC pad/rotor, SS brakelines, UUC DSSR, custom sound+alpine receiver, 17" PS2s, H&R/bilsports.
"Speed is the product of doing everything right"