In a move that will surely cause some headaches in Ingolstadt, BMW is reportedly preparing to offer all-wheel drive on the 2012 M5.

Speaking with Autocar, Albert Biermann, the Head of Development at BMW M GmbH, hinted that "There will be some all-wheel drive surprises on M cars in the future." This seems to imply the company is considering an AWD option for the M5 as well as the redesigned M3 and M6.

No time frame was given, but the all-wheel drive system seems to be a concession to attract more buyers in cold climates such as the north-eastern United States.

Autocar is also reporting that power output will be 552 bhp (560 PS / 412 kW) and 510 lb-ft (691 Nm) of torque bringing 0-100 km/h sprint in 4.5 seconds.

Debut of the production version M5 which will essentially look the same as this concept will take place in Frankfurt this September.