Originally Posted by evanescent03
so… how was it? i'm very interested in getting a 335i as a DD/occasional track car but all these track related problems (although seems like they're getting worked out somewhat) really has me wondering. Thanks! i'd really like to stick with a BMW rather than go to an S4….
The N55 has been better with cooling and reliability. I only owned the N54 so I can't speak from experience.