Thanks to a 500-horsepower, supercharged engine that’s strapped in, engineers would really have to muck things up to produce a GT500 registering anything but fast. With a 0-60 mph time in the low four second arena, it’s admittedly quick, but not the quickest, though with a base price in the $40,000s it’s not the priciest either. But what the Shelby lacks is handling on par with its power. In NASCAR terms, the Shelby would lose the race in the corners, a point likely of little surprise to anyone who has driven a Mustang.