GFG Style Sibylla

The Chevrolet Testudo is a concept car built by Bertone on a modified Chevrolet Corvair Monza platform. The name comes from the Latin word for "Turtle". The car debuted at the 1963 Geneva Motor Show.
General Motors Vice President of Styling Bill Mitchell wanted to promote Corvair sales in Europe using locally styled versions. At least two major Italian Carrozzeria showed designs for the Corvair using cars believed to have been supplied directly from GM. Pininfarina showed the first iteration of their Corvair Speciale as early as 1960....