Here is a beautiful E60 M5 V10 with 21" HRE wheels, Dinan exhaust, and much more...
The last generation M5 (E39) was a V8. The upcoming M5 (F10) will be a V8TT. With that being said, the current M5 (E60) with the N/A V10 is going to be a classic. There is NO replacement for displacement! It would be wise to hold on to this car if you own one!