Tuned Hellcat Jailbreak conquers the quarter mile in 9.81 seconds, outrunning a Chrysler 300 and custom Mustang.

The Dodge Challenger Scat Pack hits 0-60 mph in 4.1 sec with its 485-hp 6.4L HEMI V8. See how it beats the Mustang GT, Camaro ...

What killed horsepower in the 1970s and 1980s? While the common consensus is 1972, the truth is that the real date depends on ...