But can you really calculate N500 to this? N500 is _not_ typical E39 M5, imoWho has the most powerful naturally aspirated e39 m5? I think that I might have currently the most powerful car documented by dyno. Excluding race cars and unverified rumors who has made over 450bhp at the crank?
'Was' the fastest..Yes true..Sal's E39 M5 "Evolve M5" i remember it made 386WHP..not sure honestly but Sal can confirm this..but i'm sure it's the fastest N/A M5 in Europe )