Buick Special Convertible
The 1963 body was only produced for one year; it sold 148,750 copies, including 42,321 Skylarks. The entire car was redesigned for 1964. After that, the 215 found its way into the Rover P6 3500S in 1968, but was never sold in North America in any great numbers. It was also employed in other British cars, including the Morgan Plus 8, MG MGB GTV8, Land Rover, and Triumph TR8, as well as retrofits into MGAs and MGBs.
Source: Wikipedia, 2013