You just missed your chance to buy an F10 BMW M5 for really cheap ... are the black kidney grilles and a cat-back exhaust system from Eisenmann that makes this car even throatier.

The M5 rumor mill ... but the system’s total of 717 hp and 738 pounds-feet of torque are gobsmacking just the same. Continually adjustable flaps in the sport exhaust system control the engine ...

Though the complication of modern electronics means it can’t quite match the 231mph peak speed of G-Power’s twin-supercharged E60 M5, we can’t imagine it’ll disappoint. The exhaust system ...

For the M5, BMW’s M division swapped the M1’s Kugelfisher fuel injection system for a Bosch Motronic ... rasping straight-six timbre from the exhaust just before you need to change gear.