Porsche (1980-1989)

1987 Porsche 928 4-door prototype car

The work was not done by Porsche, but by a division of the American Sunroof Company (ASC). ASC was already an established Porsche supplier, currently building convertible 944s in a coachbuilding facility in Germany. The one-off prototype was built with two small rear coach doors for improved passenger accessibility.

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