Since its inception in the mid 1950s, the now legendary Porsche Speedster moniker has always stood for elemental open air motoring. Speedsters have always had a lower windscreen, more basic convertible top, and two seats only, giving the cars a stunning and rakish look. The 356 Speedster was available with the standard pushrod motor or the exotic racing four cam Carrera motor, but every Speedster since has had a chassis and naturally aspirated engine shared with a conventional 911 variant. For the 991 generation of Speedster, Porsche changed all that. While the 997 Speedster was based on the Carrera GTS, the 991 Speedster is based on the GT3, a significant paradigm shift that has brought the Speedster to the next level. Using the spectacular 4.0 liter naturally-aspirated GT3 engine with 9000 RPM redline and available with a manual transmission only, the 991 Speedster stays true to the philosophy of the Speedster: the most driver-oriented, visually stunning, open-air Porsche you can buy.