The Pontiac GTO may have been the first true muscle car, but that distinction has never been enough to assure it an uninterrupted production run. Already, the Pontiac GTO has used up two lives. Originally produced from 1964-'74, the "Pontiac GTO" was resurrected for the 2004 model year after a 30-year hiatus. The new GTO (née Holden Monaro) was a definite sleeper style-wise, but in keeping with