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.