With 735 horsepower and a Dinan-tuned suspension, the CarBahn BMW M4 is a precision-guided sledgehammer. Okay, so what the ...
Now he’s back on the scene with CarBahn, his new venture that still reworks BMW ... M4 and create a system that works seamlessly together. That Steve Dinan continues to offer packages and parts ...
CarBahn calls its G82 M4 mods its Signature package, and it retails for $20,599. There are some more CarBahn options on this particular test car that add another $9,000 to the price, in addition to ...