GeigerCars, the Ford tuning specialist from Munich named after Karl Geiger, has finished a customization for the Mustang Shelby GT500. Alongside the Mustang V6 and V8 Mustang GT, the wild Mustang Shelby GT500 is equipped ex factory with 540 PS, an aggressive body and traditional double stripe paintwork.2010 GeigerCars Ford Mustang Shelby GT 500GeigerCars has given a significant power increase to