Last year, we had a chance to speak with Chuck Cantwell, the chief engineer behind the 1960s Shelby GT350R. Cantwell was hired by Carroll Shelby himself; he worked as a project engineer in Los Angeles during the Shelby marque's golden years and was responsible for both street and race GT350s, among other things. Cantwell also oversaw performance and prototype testing for the Shelby Mustang—he worked directly with legendary Shelby drivers like Ken Miles, he did duty as a GT350R test driver, and h