BMW has already announced that the new 2012 BMW M5 specs would bring back 4-cylinder engines to North America, and the German automaker is doing it in a big way, replacing the standard inline-six with a new turbocharged 4-banger across its 2012 BMW M5 lineup. Starting for the 2012 BMW M5 model year, the 528i will drop the 3.0-liter six in favor of a turbocharged 2.0-liter engine. The power of this 2012 BMW M5 will increase slightly from 240-hp to 245-hp, while torque gets a more significant increase rising from 230 lb-ft to 258 lb-ft. Plus, all of that torque will come on at just 1,250 rpm. The obvious changes in the 2012 BMW M5 are a deeper front bumper and the flares are a bit more pronounced in the fenders.
As with the previous two generations of the M5, the 2012 BMW M5 will be assembled alongside standard versions of the 2012 BMW 5 Series, the 2012 BMW 6 Series and the 7-series in Germany. Along with standard versions, indications are that the 2012 BMW M5 will also be sold with optional all-wheel drive at a later date in a bid to increase BMW’s penetration in key North American snow-belt states. The 2012 BMW M5 bowed in concept form at the Shanghai motor show this spring and arrives in production guise this fall at the 2011 Frankfurt Auto Show. The 2012 BMW M5 will fight the Cadillac CTS-V, the Mercedes-Benz CLS AMG, the Jaguar XFR, the Lexus IS F and the Audi S6 for attention among luxury buyers.
( Source : http://carissued.com/bmw/2012-bmw-m5-re-design.html )