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

Only 678 customers ordered this version of the 440 ... this GTX. In addition to the cool options, it also sports a one-year-only design. Plymouth made significant design changes in 1970 and ...

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Much like the GTX, the Road Runner was restricted ... with only 152 units built in 1970. This Mopar packs a 440-cubic-inch V8 of the Six-Barrel variety. It's not quite as rare, but it's decidedly ...

Weighing in at 3,414 pounds with the driver, this Plymouth is also relatively lightweight, and should prove to be blast on the strip. Meanwhile, over in the other lane, we find a 1970 Buick GSX ...