Audi has unveiled its latest LMP1 racing car. The R15 will compete at the Le Mans 24-hour race and also in selected races in the American Le Mans Series with its race debut at Sebring in March.
There is a new V10 turbodiesel motor that is said to be lighter and more compact than the twelve-cylinder engine it replaces. This engine produces 'more than' 590bhp and 774lb.ft while fuel consumption and CO2 emissions are also expected to be lower than last year's racer. There is also a new generation, lighter particulate filter to clean up the exhaust.
A great deal of work has gone into the aerodynamic package for the R15, which gives it a distinctive new look. The front end features a new 'high nose' design and a rear wing that is supported from above by a pair of curved uprights.
The aerodynamics allow the front and rear ride height to be raised; part of what is described as numerous chassis and suspension innovations. A longer wheelbase and 'optimised vehicle weight' are aimed at making the R15 more agile than its predecessor.
Audi has also completely revised the race car's electrical system. A lithium-ion battery is installed; it is lighter and supplies a higher voltage than a conventional battery. The headlights take advantage of the extra power - handy when racing at night - while the low-beam unit consists entirely of light emitting diodes.
With a history of eight Le Mans victories (four with diesel power) Audi has a lot riding on the success of the R15. At the same time Ingolstadt clearly knows what makes a successful long-distance racer. The first race of the American Le Mans Series is at Sebring in Florida on 21st March while this year's Le Mans 24-hour race takes place on 13th and 14th June, where both Peugeot and Aston Martin will be hoping to topple the German maker from its pedestal.
John Lambert - 11 Mar 2009