Both these cars are supercharged. The Dodge Challenger Hellcat is loaded with a blown 6.2-liter HEMI V8 from the factory. Key modifications include blower porting, a camshaft upgrade, an assortment of aftermarket bolt-ons, an ice water intercooler and an E85 tune from Yellow Jacket Tuning. The car also has a set of fat slicks on the rear and has undergone substantial weight reduction. The Hellcat is running an automatic transmission.
On the other hand, the Ford Mustang 5.0 began life as a naturally aspirated automobile with a 5.0-liter V8 motor. It has been upgraded with a 3.0-liter Whipple supercharger, full bolt-ons, an ice water intercooler and a Palm Beach Dyno tune. This pony has also had weight reduction.
Both of these cars sound and look amazing. Stand back and let the acceleration begin!