Originally Posted by WolfsburgerMitFries
To me it looks like some sort of M Sport package. I've read a lot of discussion at the E90post forum with 335i overheating problems when pushed hard for longer periods of time. I can't see a 135i being a good idea unless you lived near the arctic circle.
Look further into it. If I'm not mistaken, all those with overheating problem were automatics equipped with 1 intercooler. The manuals came with 2. I guess they figured those with automatics were going to stay off the track. BMW has since addressed the problems by producing all 335i's with both intercoolers.