My auto shop teacher in high school had one of these... well it started as an Asrta kit, but by the time he was done with it it was something totally unique. Corvette chassis, Buick 455. The side mirrors retraced into the body when the car was off. He had it tricked out inside with custom retractable radar detector (it lowered into the dash and a door closed when the car was off, or when he hit a switch) he had cup holders that were motorized and slid in and out of the console. the whole thing was one of a kind. It was pretty awesome!

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