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 DINAN Supercharged E36 M3 takes an already legendary BMW and pushes it to the next level of performance. With added horsepower, improved handling, and that raw, analog driving experience, many ...

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.

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.

What if we told you Steve Dinan's latest BMW is (almost) a Porsche GT3 RS (minus ... There are some more CarBahn options on this particular test car that add another $9,000 to the price, in ...