Pontiac Grand Prix X-400 Show Car, 1963. Built by GM Styling using a stock Catalina Convertible powered by a supercharged 421ci Pontiac V8 engine built by racer Mickey Thompson. Though it previewed the concept of a Grand Prix convertible none was offered for sale until the second generation in 1967 and then only for a year. X-400 show cars were built each year for 1959, 1960, 1962, 1963 and 1964. The car still exits in the hands of a collector
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![Ron-Galella-Joey-Heatherton-kicking-up-her-heels-at-the-Artists-Models-Ball-at-the-Biltmore-Hotel-in-New-York-1966_3BSzW__please_credit[palette.fm]](https://the60s.fourthave.net/wp-content/uploads/2022/12/Ron-Galella-Joey-Heatherton-kicking-up-her-heels-at-the-Artists-Models-Ball-at-the-Biltmore-Hotel-in-New-York-1966_3BSzW__please_creditpalette.fm_.jpg "Joey Heatherton at the Artists & Models Ball, 1966")
