The Spyder is the only model from the 981 generation to feature an updated faster ratio steering rack shared with 911 Turbo S for improved steering response and feel. Total weight savings amounted to 66 lb (30 kg) when compared to a manual-equipped Boxster GTS despite the Spyder's upsized engine and chassis upgrades. The air conditioning and audio system were also removed, although they could be added as no cost options. Interior door handles were replaced with nylon door pulls for a weight savings of 1.2 lb (1 kg). The manual soft top results in a weight saving of 24 lb (11 kg) over the standard Boxster's electric powered top. The Spyder's lightweight design was achieved through the use of aluminum doors and rear boot lid, a manually operated canvas soft top with electronic assist, and unique lightweight 20 inch wheels. It also shares some styling with the Cayman GT4, using the same front and rear fascia. The styling of the car is similar to the previous generation Spyder, continuing the twin hump rear deck and manually operated canvas top. The Spyder is only available with a 6 speed manual transmission. This allowed the car to attain a top speed of 290 km/h (180 mph). It is powered by the largest and most powerful engine used in a Boxster at the time, a 3.8 litre flat-6 shared with the Cayman GT4 and 911 Carrera S, rated at 375 hp (280 kW). The Spyder is a lightweight high performance version of the Boxster and the lightest Porsche in the model lineup at the time, weighing 1,315 kg (2,899 lb). Porsche unveiled the latest Boxster Spyder based on the 981 Boxster in April 2015 at the New York Auto Show. The range was expanded in March 2014 with the addition of the GTS derivative, with slightly altered front and rear bumpers and an additional 11 kW (15 hp) from the 3.4-litre engine. Porsche claims that the new generation Boxster provides fuel savings of 15% over the outgoing model. Both manual and automatic models are available with several technical options including Porsche Torque Vectoring (PTV) and a Sport Chrono Package that includes active transmission mounts, and makes the PDK-equipped model even faster. Both engines are equipped with a 6-speed manual gearbox and an optional 7-speed reworked PDK. The 2.7-litre engine is rated at 194 kW (260 hp) while the 3.4-litre engine is rated at 231 kW (310 hp). The standard Boxster is fitted with a new 2.7-litre flat-6 engine, and the Boxster S is fitted with the existing 3.4-litre engine but with revised performance. Another new feature was the auto start/stop system. The Sport Chrono Package includes dynamic gearbox mounts. The instrument cluster features a 4.6" TFT color screen in conjunction with various sensors that can display accurate engine temperature, oil temperature and oil pressure. The 981 was the first Boxster/Cayman to use electronically assisted steering, and the parking brake in the car uses an electronic linkage. There is a small weight reduction of up to 35 kg (77 lb) compared to the outgoing 987. The chassis had been revised: it is 40 percent more torsionally rigid, the front track is 40 mm (1.6 in) wider, the rear track is 18 mm (0.7 in) wider, and the wheelbase has been extended by 60 mm (2.4 in). The 981 reflects the new design language from the 911 (991) and 918, and features revised engine and transmission specifications. It was announced on 13 March 2012 at the Geneva Auto Show with sales starting early summer 2012. The Porsche 981 is the internal designation given to the third-generation of the Boxster and second generation of the Cayman models built by German automobile manufacturer Porsche.
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