Shelby, the custom performance vehicle manufacturer, is recognised globally as the premium upgrade to Ford Mustangs. Since 1962 Shelby has been the industry leader and some 55 years later remains in a class of its own. With its indisputable heritage and passion for innovation Shelby enhanced vehicles are collectables with a future embedded value. The unique CSM number given to vehicles, which modifications have been approved by Shelby American in Las Vegas; confirms the authenticity of the performance enhanced vehicles. In saying this, we strongly advise that as a minimum, you should consider a Shelby GTE upgrade for your Mustang, as this entitles you to the CSM number and Shelby chassis plate.