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"&amp;quot;Muscle cars&amp;quot; are American automobiles with lots of power, modest weight, and blazing acceleration. The term was coined in 1964 when Pontiac introduced a potent 389-cubic-inch V-8 for a midsize car. The option turned a tame Tempest into a snarling GTO. "^^<http://www.w3.org/2001/XMLSchema#string>
<http://musclecars.howstuffworks.com/muscle-car-information/how-muscle-cars-work8.htm>