With V10 power, 507 horsepower and a 7-speed F1-style SMG transmission, the 2005 M5 is readying to take back its ultimate sedan status from the Audi RS6 and Mercedes-Benz E55 AMG. The M5 has the ability to deliver mind-numbing driving dynamics capable of humbling even the finest Italian supercars without breaking a sweat or losing its 5-Series' style or functionality
