The Ford Mustang GT isn't necessarily a slow pony car, but, as the Shelby GT350 proves, there's still a lot of meat left on the bone. However, GeigerCar's idea of a powerful muscle car might be a little too much to handle. The tuning company added 400 more horsepower, for a total of 820 hp and 560 lb-ft of torque. That's a lot more than the Mustang GT's stock output of 435 hp and 400 lb-ft of torque. GeigerCars, however, hasn't released any zero to 60 figures or top speed numbers, but we're sure this beast is extremely fast.

To get this kind of power out of the 5.0-liter V8, the German tuning company fitted the motor with a 2.9-liter supercharger, steel connecting rods, forged pistons, a stainless steel sports exhaust system, performance crankshaft, as well as a cold air intake. This car isn't all show and no go, however, as handling has been improved thanks to new sport tuned suspension and the available GT Performance package. GeigerCars has also given the Mustang GT a new look with a carbon fiber body kit, which consists of an open grille, front splitter, side skirts, a rear diffuser, trunk-mounted spoiler and 20-inch lightweight forged alloy wheels. The bad news is that the package costs roughly $124,285, but some parts are sold separately.