The current BMW M5 is all-new for 2012. Like the 5 Series upon which it is based, this M5 is larger than its predecessor, with an improved interior and more traditional BMW styling. Compared to the last M5, however, the current one swapped out the old V10 for a twin-turbo V8, while gaining a more advanced automated manual transmission, a limited-slip rear differential, upgraded brakes and enhanced adjustable drive settings. Unlike the regular 5 Series, the M5 sticks with more responsive and communicative hydraulic power steering rather than electric.
Underneath the hood, the M5 packs a twin-turbo 4.4-liter V8 good for 560 horsepower and 501 pound-feet of torque. Rear-wheel drive and a seven-speed dual-clutch automated manual are standard, while a six-speed manual is available. Unlike the high-strung engines that came before it, this turbocharged lump enjoys a mountain of low-end torque and doesn’t let up as the revs build. This is an astonishingly quick car.