Peugeot unveils 908 Hybrid4 Le Mans racer at Geneva

 

After revealing its completely redesigned 2011 908 Le Mans Prototype last month, Peugeot announced a hybrid version today at the Geneva Motor Show.  The Peugeot 908 Hybrid4 adds a hybrid component to the 3.7-liter diesel V8. Peugeot has been fiddling with this since late 2008, but the car that debuted at the Geneva Motor Show may actually see competition.

While Peugeot is using the same Hybrid4 branding as its production hybrids like the upcoming 3008 crossover, the system is completely different.  The road-going hybrids use a through the road configuration with the conventional powertrain driving the front wheels and an electric motor powering the rear axle.  Last year’s Porsche 911 GT3 hybrid (and the newer 918 RSR) use a similar setup with the electric drive on the front axle and engine on the rear.

The 908 Hybrid4 sends both the diesel and electric power to the rear wheels. The 60 kW motor/generator captures kinetic energy under braking and stores it in a lithium ion battery. The 0.139 kWh of stored energy is automatically released and blended with the engine power when accelerating with no push-to-pass button required.  The powertrain can also drive the 908 in pure electric mode along the pit-lane where speeds are limited.

Right now Peugeot hasn’t committed to racing the 908 Hybrid4. They’re French, remember. It will be track tested later this month alongside the conventional diesel 908. If everything goes well, Peugeot will bring the hybrid to the official Le Mans test day on April 24. What happens beyond that will depend on how both cars run against the new Audis and Aston Martins.  Because overall victory is Peugeot’s top priority, the conventional car will get most of the effort in order to make sure it is reliable and fast.  If the team is confident enough in the base car, we wouldn’t be surprised to see the hybrid run as a third (or fourth) entry.

Aston Martin AMR-One Le Mans Prototype flips its lid

 

Aston Martin’s new 2011 Le Mans Prototype flips the script on its predecessor. The LMP1 car fielded by Aston Martin Racing for the last two years was a modified Lola coupe powered by a competition version of the 6.0-liter V12 that propels most Aston road cars. Despite being the fastest non-diesel P1 of the past two seasons, it couldn’t compete with the Audi R15 and Peugeot 908.

While Audi has switched to a closed cockpit for its new R18, the AMR-One does away with its roof to make driver changes quicker. The aerodynamic hit is balanced by speed in the pits. The carbon-fiber chassis of the AMR-One has been developed in-house by Aston Martin rather than use off-the-shelf Lola parts. Like the new Audi and Peugeot racers, Aston Martin has opted for 18-inch wheels all around which is expected to provide better balance. Despite the rear-mid-engine layout and the now-mandatory shark fin on the back, the flat sides of the AMR-One mean that it most closely resembles the front-engine Panoz LMP1 Roadster of 1999.

2011 P1 rules  limit non-diesel normally aspirated engines to 3.4-liters  and boosted engines to 2.0-liters.  Aston engineers have created a brand-new 2.0-liter turbocharged inline-six-cylinder that cranks out an estimated 540 horsepower. Power is fed to the rear wheels via an Xtrac six-speed semi-automatic gearbox with a pneumatic shift mechanism.

Aston Martin is planning to build six examples of the AMR-One but they won’t be ready to race at the ALMS/Intercontinental Le Mans Cup season opener at Sebring this month. Aston hasn’t said if they will run a Lola at Sebring although the Cytosport team will be campaigning one of the Lolas in Florida and throughout the rest of the year. Aston does plan to run a car in the rest of the ILMC races and two cars at Le Mans in June.