2015 Porsche 918 Spyder - Review and Specs

The Porsche 918 Spyder embodies the essence of the Porsche idea, combining pedigree motor racing technology with excellent everyday suitability, and maximum performance with minimum consumption. The début of the 918 Spyder at the IAA 2013 marks the start of a new chapter in the future of the hybrid drive.

And the technology pioneers are not the only ones who are excited by this flagship project, as the 918 Spyder demonstrates the potential of the hybrid drive to a degree never seen before, achieving a parallel improvement in both fuel efficiency and performance without compromising on either. This is the idea that has made the Porsche 911 the most successful sportscar in the world for the past 50 years. In short, the 918 Spyder contains the genetic blueprint for the Porsche sportscar of the future.

The Porsche 918 Spyder has been greatly influenced by its affiliations with motorsport. A number of the developments to the Porsche race car for the 24 Hours of Le Mans 2014 were used in the 918 Spyder - and vice versa. The structural concept, which is based on a rolling chassis (i.e. a chassis without bodywork), is standard for Porsche race cars. The design of the V8 engine is based on that of the Le Mans Prototype 2 (LMP2) race car, the RS Spyder, and the supporting monocoque structures and unit carriers are made from carbon fibre reinforced plastic (CFRP). More importantly, however, the Porsche 918 Spyder is considerably more fuel efficient than any of its competitors. In fact, this plug-in hybrid combines the performance of a race car with an output of over 880 bhp with an estimated NEDC fuel consumption of just three litres per 100 km, which is lower than the majority of today's compact cars. Drivers can therefore enjoy maximum driving pleasure and minimum fuel consumption.

The core message surrounding the 918 Spyder is that the Porsche hybrid drive offers uncompromising dynamic performance. The unique all-wheel drive concept with a combined combustion engine and electric motor drive system on the rear axle and a second electric motor on the front axle make this possible. This concept is based on Porsche's motorsport development work for the successful 911 GT3 R hybrid.

The additional, individually controllable front-wheel drive enables new driving strategies to be used for extremely high yet safe speeds through bends in particular. What's more, the advanced "boost" strategy manages the energy of the electric drive so intelligently that the unrestricted total power of the 918 Spyder can be accessed simply by fully depressing the accelerator pedal for every burst of speed at maximum acceleration. In short, the Porsche 918 Spyder allows even drivers without motorsport training to experience the potential of advanced longitudinal and lateral dynamics.

The centrepiece of the 918 Spyder concept is the distribution of propulsive power across three power units, all of which are integrated and controlled via an intelligent management system. To benefit as much as possible from the coverage offered by the different systems, the Porsche developers have defined a total of five operating modes, which can be activated via a map switch in the steering wheel, just like in race cars. Using the pre-selected mode, the 918 Spyder applies the most suitable operating and boost strategy without any further intervention from drivers, thus allowing them to concentrate fully on the road.

The V8 engine is coupled to the hybrid module as the Porsche 918 Spyder is designed as a parallel hybrid like Porsche's current hybrid models. The hybrid module essentially comprises a 115-kW electric motor and a decoupler that serves as the connection with the combustion engine. Because of its parallel hybrid configuration, the 918 Spyder can be powered at the rear axle either individually by the combustion engine or the electric motor, or via both drives together. As is typical for a Porsche super sportscar, the power unit assembly in the 918 Spyder has been placed in front of the rear axle, and it does not have a direct mechanical connection to the front axle. A seven-speed Porsche Doppelkupplung (PDK) transmission handles power transmission to the rear axle.

The 918 Spyder continues a long tradition of super sportscars at Porsche. Many of these vehicles have set technological benchmarks and have become the ultimate sportscars of their decades: the Carrera GTS, the first Porsche Turbo, the 959, the 911 GT1 and the Carrera GT. More so than any of its predecessors, the 918 Spyder is providing the key momentum for developing technologies for future vehicle concepts. The Porsche 918 Spyder features all the components that reflect the Porsche DNA in a format that is more powerful than ever before.