From 1959 to 1969, General Motors produced around 1.7 million Chevrolet Corvairs, a compact car that was supposed to give the European competition a run for its money. Despite modern technology and pioneering design approaches, however, the rear-engined car failed due to bad publicity caused by consumer advocate Ralph Nader. With its air-cooled six-cylinder boxer engine in the rear, the Corvair looks a little like a Porsche Panamera predecessor, but has its own special charms, especially as a convertible, which this driving report aims to convey in text and pictures.