Standard lighting includes halogen projector beam headlamps and taillamps. RS and SS models add HID projector-beam headlamps and LED “signature lighting” daytime running lights including a sweeping LED light pipe integrated in the headlamp and an LED light pipe integrated into the front fascia. RS and SS models also feature LED lighting for the rear taillamps, including auxiliary LED light guides that mirror the shape of the front signature lighting.
The looks of the Shelby GT are drop dead gorgeous and the S550s finely sculpted body lines are accented nicely by all the true carbon fiber panels such as the tail light panel, rear diffuser, spoilers, rocker panels, splitter and even the functional heat extractors on the carbon fiber hood that is painted to match the car.
But more than the history and visual cues, the Scat Pack package is a nod to all the engineering and performance upgrades that must necessarily accompany a powerplant of this magnitude. Improvements over the 5.7L Hemi R/T Challenger include larger four-piston Brembo brakes, wider and taller 20-inch rubber, a larger-diameter 2.75-inch dual stainless-steel exhaust system, Performance Pages, aerodynamically enhanced spoilers, an uprated 3.09:1 limited-slip rear, higher-output 220-amp alternator, and High-Performance suspension. And except for Performance Pages, it’s all needed to safely meet the needs of the Scat Pack’s 177 mph top speed.
At Mopars at the Strip, Hot Rod magazine had a similarly optioned automatic Scat Pack Charger, and ran a 12.87/107. That’s quick for any car, let alone one that tops the scale at over two tons. Our curiosity led us to the Dynojet chassis dyno at Kenne-Bell Performance, where we put our 2015 Scat Pack Challenger on the rollers. The press-fleet example put out 434 hp to the wheels, which was 9 hp more than a bone-stock ’14 SRT 392 Challenger tested earlier on the same dyno by Kenne-Bell.