Porsche has unveiled its second generation of 919 Hybrid cars and say the redesign is a technical evolution.

The German manufacturer pulled the wraps off its FIA World Endurance Championship challenger at the Paul Ricard circuit ahead of the Prologue, the WEC official test, ahead of the 2015 season.

The team has shifted into the highest of the four energy categories in the LMP1 class, producing eight megajoules from its hybrid powertrain, with the energy recovery system's output being increased by a third on its 2014 car.

Related Articles

The team are set to enter two 919 Hybrid cars for the entire LMP1 season, with an additional third entry for the Spa and Le Mans races.

Each car will have a distinct colour scheme at Le Mans: one black, one red and one white.

The new colour scheme is a tribute to the Porsche team which secured the manufacturer's first victory in Le Mans in 1970. For this year's blue riband endurance event, the number 17 Porsche will be red like the 1970 Le Mans winner and will be driven by Timo Bernhard, Brendon Hartley and Mark Webber.

The second Porsche LMP1 entry will be black in homage to the close technical relationship between the 919 Hybrid racing car and the 918 Spyder super car. Marc Lieb will drive the black 919 in Le Mans with Romain Dumas and Neel Jani.

The team's third car will be white, the same colour Porsche chose for its return to top level racing after a 16-year absence and will be driven by Earl Bamber, Formula 1 driver Nico H?lkenberg and Nick Tandy.

Wolfgang Hatz, a board member for research and development at Porsche AG feels the new 919 Hybrid is a step forward from its engineers and will set Porsche apart from its rivals.

"The LMP1 programme at Porsche focuses on extensively networked cooperation between the engineers who work on our innovative drive system concept," Hatz said. "This sets us apart from the competition and we plan to grow even stronger in this segment."