The 707-horsepower Dodge Challenger SRT Hellcat first appeared on public roads in 2015. Those who stuck to

it loved it right away, but others weren't so sure. Even better, the Challenger SRT Hellcat's horsepower went up

from 707 to 807 in just eight years, which is about the same

as the gap between the fifth and sixth generation

Shelby GT500s. Despite having more power, the Dodge

Challenger SRT Hellcat didn't really go any quicker than when it first came.