|1967 Pontiac GTO. 1967 marked the first availability of ram air through a functional hood scoop on the GTO. It was a 400-cubic-inch V-8, delivering 360 horsepower. The high output engine produced the most power for that year at 360 hp (270 kW) at 5100 rpm, and produced 438 lb·ft at 3600 rpm.|
|1968 Plymouth Road Runner Hemi. The Plymouth Road Runner Hemi was pure brawn with a 425-horsepower, 426-cubic-inch Hemi V-8 engine.|
Plymouth licensed the Road Runner name and likeness from Warner Brothers.
It went a step further by developing a horn sound imitating the cartoon bird's "beep-beep,"
|1970 Buick GSX Stage 1. Of the 687 GSXs built, 488 were ordered with the Stage 1 upgrade. By 1970, a 455-cubic-inch V-8 engine powered the Gran Sport. It produced a hefty 510 pounds-foot of torque.|