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'The world's finest motorcycle' of the 1970s was a ridiculous 100 HP twin-rotor beast that cost more than a Cadillac

Throughout motorcycle history, there have always been builders who try to push the envelope and do something different.

Chevy experimented with a 2-rotor Corvette in '73

The rotary engine isn't very common today, but back in 1973, Chevy experimented with one of its own in a special concept ...