Shelbys refer to a line of high-performance sports cars originally developed by American automotive designer Carroll Shelby. The most famous model is the Shelby Cobra, which combines a lightweight chassis with a powerful engine, resulting in impressive speed and agility. In addition to the Cobra, Shelby American has produced various modified versions of Ford vehicles, including the Ford Mustang. These cars are known for their distinctive styling, enhanced performance features, and limited production runs, making them highly sought after by collectors and enthusiasts.