Video: 2011 Ford Mustang Shelby GT500 is nine seconds faster than previous model |

Ford unleashed a plethora of upgrades, new technologies and, most importantly, improved engines onto its 2011 Mustang muscle car.

As such, a drastic improvement in performance times and even in fuel economy was recorded. With the 2011 Ford Mustang Shelby GT500, the improvement is even more noticeable. Thanks to the new, aluminum-block 550 HP supercharged 5.4-liter V8, which is 120 lbs lighter than the last engine, the new GT500 is extremely fast.

In order to see how much faster the 2011 Shelby GT500 is over the outgoing 2010 model, Ford engineers took the car to he Virginia International Speedway. Before the test laps, insiders figured a 3 second difference would be achieved. After the laps, they were definitely surprised, as the newer and lighter GT500 was a full nine seconds faster than the older model.

Curious to see the amazing run? Then hit the jump and check it out.

Post tags : 2011 ford mustang, 2011 ford mustang shelby gt500, 2011 ford shelby gt500, Ford, ford-mustang, Video