To coincide with the naming of the new (at the time) "Up with People" youth organization, AMC's ad agency coined "Up with the Rebel Machine!" for the company's new muscle car in an attempt to capture the attention of the youth market.
According to an article from the Hot Rod Network:
"In retrospect, the Rebel Machine would have probably been an even bigger success had it been released in 1966 or 1967, when other muscle cars of its kind—the SS396 Chevelle, 389ci Pontiac GTO, 350ci Oldsmobile, 390 Fairlane GT and GTA, 390 Comet Cyclone, and Mopar 383 cars—all roared onto the market."
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