Originally Posted by hans007
uh yes we have... the 5 and 6 series...
there was no 6 series (well not for 14 years) until the E63 645 came out. it had the same engine as the... 545i at the time.
Uh no. There never was a 5 series coupe. So splitting the 4 from the 3er is something totally unique in their recent history.
And the 6er has a more powerful (tuned) version of the N55 than what you get in the 5 series. So again, it stands to reason that the 4 I6 coupe will be more powerful than the equivalent 3 series sedan.