
Road and Track
The Dodge Challenger Scat Pack is 222 hp shy of a full Hellcat, but your butt dyno insists it feels faster. What's gives?
It's the same in every other gear. The Scat Pack briefly accelerates harder—and thus feels faster—than the Hellcat. But because the Hellcat pulls hard for longer, it's ultimately the faster car.
Remember the airplane, though—a long pull dulls the sense of acceleration. So, too, do the slowly ascending engine note and the relatively infrequent shifts. Short gears do the opposite, diddling your butt-dyno with higher peak acceleration and a repetitive screaming-engine redline rush.