While the new S550 platform is a huge improvement over the previous generation when it comes to gripping through the curves and making use of all the power, Shelby American knew they could make the 2015 Ford Mustang 5.0 GT even better. Naturally, they did just that and built what you could honestly call a track ready daily driver, the 2015 Shelby GT—a 650hp supercharged beast that will shove you into the seat if you mash on the throttle or cruise all day long on the highway without a hitch.
The driving experience is not altogether different than Hellcat. In fact, the first third of throttle travel feels more alert and aggressive than the more powerful SRT. Moreover, full-throttle shifts sound like artillery going off with the Scat Pack’s Hellcat-inspired active exhaust system. The power comes on quickly, and when gears are shifted manually through the steering wheel paddle shifters, you better be on your game—the rev-limiter comes up quick in the first few gears. Pulling away from the intersection, you’ve got to be ginger with the gas pedal, as the tires will erupt with squealing and chirping during what we’d call normal driving.
Start by remaining focused on the tach and listen to the engine—most times we have a specific rpm in mind, but generally we shift by feel. Naturally, you want to shift before the engine hits the rev limiter, but with the Coyote engine you want to get close to redline. In the 2015 we were shooting for 7,000 rpm.
The time-honored question car enthusiasts often ask is undoubtedly, “What will it run?” Meaning, how quickly can a given car cover the quarter-mile. Drag racing is universal and allows us to compare cars and driver skill no matter where in the world the car is raced. Sure, a great ’Ring time is important, but how many of us will travel to Germany to race? Going quick in the quarter (or eighth-mile) requires a favorable power-to-weight ratio, good traction, and some driver skill. With the 2015 GT, you get 435 ponies and the weight is about 3,750 pounds. So, what will it run and how will the IRS perform on the strip?