Yes - but the E39 is really hard to beat if you need some room or 4 doors... I challenge you to install 3 baby seats in a Camaro or Mustang! I think that might fit in the E90?
Can we think of any other cars that have the combination of 4 doors, 8 cyl, 6M gears?
G8, S4, S6, CTS-V .... I think these all cost much more than a 540...