The modern Shelby Mustang line-up started with the 2007 Shelby GT500 coupe and convertible. With the recent launch of the 2007 Shelby GT, the 2008 Shelby GT500KR becomes the third production high-performance Mustang brought to market through the relationship of Shelby Automobiles and Ford. Ford and Shelby Automobiles also partnered up with Hertz to produce a special limited run of 500 Shelby GT-H “rent-a-racer” Mustangs available only for rent.