Even if the American automaker Ford has just launched the 2010 Mustang, the blue oval engineers are already preparing a few new goodies for the 2011 model. The latest spy shots are showing that we might get more than we bargained for.

In a recent trip to Ford's testing facility in Dearborn, our editorial staff not only saw, but heard a pair of Mustang->ke428s running up and down the high speed straight away section of their track. The interesting thing, aside from the amber lights and strange looking camouflage, these pony cars were singing to a much deeper tune than any of the 2010 models that we had ever heard before. That is because under the hood Ford was testing out the new, all-aluminum 32-valve 5.0 Liter V8 that makes around 400 HP and 400 lb-ft of torque. Dubbed the “Coyote,” this new power plant will give the Mustang a fighting chance against modern day muscle like the 426 HP Chevrolet Camaro->ke248 SS and 376 HP Dodge Challenger->ke249 R/T.

The prototypes that were spotted testing were wearing sticky Pirelli P Zero Corsa r-compound tires, the same rubber donuts that are used in super car applications. This means that we could see an even more potent track package in 2011 as well. Now we will just have to wait until November when Ford Raptor owners can experiment with shoehorning the all new 6.2 Liter V8 into a Mustang chassis, although they both make the same amount of power, the extra displacement would be worth some bragging rights.

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