var addthis_pub="mastersairab2010 Ford Shelby GT500 Coupe & Convertible with 540HPThe famous Cobra badge has returned on the latest generation Ford Mustang that was revealed at the Los Angeles Auto Show last year. The new Shelby GT500 that will be available in both coupe and convertible versions will make its world debut at the Detroit show later this month with sales following in spring 2009.