BMW has unveiled its latest generation 5 Series, revealing a modern ... wheel slip limitation for optimized traction and superior performance. A stroke-dependent damping mechanism on both axles ...

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 don't throw his company into the ring with the dozen or so other tuners who tweak, tinker and piggyback upgrades on the famed German marque.

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 ...

What if we told you Steve Dinan's latest BMW ... and because a performance car is only as good as its brakes, well, this thing rocks. Yes, CarBahn’s BMW M4 Competition beats you up as a daily ...