Model evolution / 1939—2026
Seven decades of Porsche models, drawn from the model research collection assembled by Stuttcars.
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The powerplant is a sequential twin-turbocharged DOHC flat-six engine equipped with 4 valves per cylinder, fuel fed by Bosch Motronic 2.1 fuel injection with air-cooled cylinders and water-cooled heads, with a bore x stroke of 95 mm × 67 mm (3.74 in × 2.64 in) for a total displacement of 2,849 cc (173.9 cu in). It was coupled to a unique manual transmission offering five forward speeds plus a off-road gear, as well as reverse. The engine was largely based on the 4-camshaft 24-valve powerplant used in the Porsche 956 and 962 race cars.
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