Quote:
Originally Posted by pmeloche
Actually, both the xDrive 50i and the X5M use a 4.4L turbo-charged engine so the difference would be either 0.6 or 0.0 depending if you use the bagde name or the engine displacement.  |
Actually, the 50 and M use different Engines. The 50 uses the N63B44 engine whereas the M uses the S63B44 engine. The heads of the S63 are different, and the exhaust manifold as well as the turbos are completely different
The N63 has had its share of reliability issues, especially in the E70. I'm not sure about the reliability of the S63, though.
Just my $0.02 (well, $0.03).
