Introduced for the 1964 model year, the Pontiac GTO remained in production (as a midsize car) until 1973. The jury is still out on which one is the prettiest, but I'm a fan of the 1970 version.
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1970 Pontiac GTO Judge Ram Air IV

Take a closer look at the legendary 1970 Pontiac GTO Judge equipped with the Ram Air IV engine and four-speed manual ...