...but it's really hard to justify spending 34k on a nicely equipped 135i or more on a 335i when you can have one of these for the same price. Leaf springs included...
http://forums.corvetteforum.com/c6-c...er-on-red.html
http://forums.corvetteforum.com/c6-c...z51-coupe.html
I realize they're not near as sophisticated, and the interior is pretty cheap compared to most bimmers (although the 135i's is nothing to call home about) but this gets you thinking.