As part of its plan for the 2012 Autosport International motorsport show in Birmingham Porsche will unveil the 918 RSR race car to the UK public.

The RSR was first shown at 2011 North American Auto Show in Detroit, taking the hybrid racing car concept, started with the 911 GT3 R Hybrid, to the next level.

Based on the Porsche 918 Spyder concept, the RSR features an especially light, torsionally-stiff carbon fibre-reinforced plastic (CFRP) monocoque, but the absolute highlight of it is the hybrid powertrain, consisting of a V8 petrol engine developing 563 hp, and two electric motors with 204 hp for a total output of 767 hp.

This additional power, which is generated during braking, is stored in an optimised flywheel accumulator, similar to that which has been successfully used in the Porsche Motorsport-developed 911 GT3 R Hybrid in 2010 and 2011.

Porsche will also be showing the new 991 at the Birmingham show, along with Porsche GT3 Cup Challenge cars. The 911 GT3 Cup car displayed on the Porsche stand is the latest edition of the best-selling racing car of all time, having been built in a production series of more than 2,000 since 1998.