Built with a magnesium body and a shortened wheelbase, the original prototype weighed just 550 kilograms and was powered by Porsche’s 1.5-liter, four-cam Type 547 engine. This complex flat-four produced around 135 horsepower—impressive for its time—and was paired with a four-speed manual gearbox. The car’s spaceframe construction and integrated oil-cooling system were experimental touches that later influenced Porsche’s endurance racing efforts.
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