Seems it is time again fur another look at the history of the Mustang through its vintage TV commercials. I dug up one this time on the 1967 Ford Shelby GT350 and GT500 models of the Stang. No look at the late sixties would be complete with out the Shelby Stangs. Geared toward the performance and luxury-minded consumer the Shelby’s where a key part of the Mustang’s development and transformation into a full-blown muscle car complete with loads of horsepower to spar or is that spare.