M&D Tuning

m d tuning 650i coupe image 11 750x500

M&D Tuning Takes 650i Coupe to 510 HP

M&D has unveiled their new tuning program for the BMW 6 Series Coupe. The 650i model was tuned to produce now 510 horsepower and 750 Nm (553 lb-ft) of torque. The exterior of the 640i…