With 735 horsepower and a Dinan-tuned suspension, the CarBahn BMW M4 is a precision-guided sledgehammer. Okay, so what the hell is a CarBahn? And what does it have to do with this $135,000, ...

The last time the Dinan name graced the pages of Autoblog, Michael Harley was waxing poetic about the S3-R BMW 1M Coupe, a car that still stands in his ranks as one of the best cars he's ever driven.

As standard, the E46’s 3.2-liter delivers 333 hp and 262 lb-ft (355 Nm) of torque. Thanks to the Maximum PSI Stage 1 ...

Steve Dinan has been enhancing BMW models since 1979 ... but new bump stops are installed along with new springs. Overall, the car rides about a half-inch lower than stock to improve roll rate.

I love everything about this car except for the front ... Cold Air intake and Followed by a DINAN Performance Tune kit. Lots of other extras as well, like BMW Door projector lights, Aftermarket ...