The predecessor to the Porsche's iconic Speedster is this prototype Type 540 Sport Roadster. It is known as the American Roadster, because this was the intended destination for this model. Ferry Porsche agreed to produce the car, at the insistence of Max Hoffman, an importer who was well attuned to his customers' desires. Porsche turned to the Glaser-Heuer company to produce the aluminum coachwork. All but the initial car carry Porsche's new 1500 Super motor. They sold for $4,600 or the equivalent of about three Chevrolets, and production was limited, with only 16 aluminum cars and this sole steel bodied car being produced. The car possesses some unique features such as lower front fender well and a fixed windshield. It was originally sold to Hubert Brundage, the founder of Brumos Porsche. Hoffman had neglected to mention the steel coachwork and Brundage was less than thrilled when it was discovered. The car was raced and rallied with some success, then ultimately restored in Florida.