Whereas silver was the dominant colour of the Audi R15 TDI last year, the 2010 model boasts a radical new design that features more red. In addition, large areas of the Le Mans race sports car that is internally designated as “R15 plus” will be kept in a purist black carbon-fibre look.

“We’re happy that we were allowed to give the car such a progressive look,” say Markus Auerbach and Tobias Drews from the Audi Design Team. “We wanted to add a dash of surprise when the Audi leaves the pits at Le Mans. We practically opened up the bodywork and are exposing the light-weight construction and its uncompromising technical development – and with a little rock ’n’ roll for good measure.”

The Audi R15 TDI sporting its new design will make its debut at the Le Castellet 8 Hours on April 11. Audi Sport Team Joest will contest the 2010 season opener of the Le Mans Series in preparation for the Le Mans (France) 24 Hours on June 12/13. Another test race is planned at the 1000-kilometre race at Spa-Francorchamps (Belgium).

“The race at Le Castellet comes at a very early point in time for us and is nothing but a test in racing conditions,” stresses Ralf Jüttner, Technical Director of Audi Sport Team Joest. “Even though it’s a difficult logistical undertaking, we wanted to gather experiences with the R15 plus at a race as early as possible. Le Castellet offers the opportunity to do this.”

The 2010 version of the Audi R15 TDI completed a roll-out at the Audi test track in Neustadt at the beginning of March. The prototype was subsequently flown to the USA for initial tests which primarily featured aerodynamics trials. A five-day endurance test followed at Sebring (Florida) at which about 5 500 kilometres were reeled off without any technical problems worth mentioning.

In Europe, the final set-up work with a view toward Le Mans is on the agenda. Further track tests will now be followed by the first run in a race at which the result will be of secondary importance for Audi though. “Le Castellet will strictly be about gathering additional experience with the R15 plus,” emphasizes Head of Audi Motorsport Dr. Wolfgang Ullrich. “Racing conditions simply can’t be simulated in normal track tests; that’s why we’re contesting a race at such an early stage.”

It is planned to field the R15 plus with chassis number 202. Audi Sport Team Joest has nominated Dindo Capello (Italy), Tom Kristensen (Denmark) and Allan McNish (Scotland) as drivers. “However, we will only decide whether all three drivers will actually race at short notice,” says Dr. Wolfgang Ullrich.

Since Audi has performed several endurance tests for the Le Mans 24 Hours at Le Castellet in recent years, the team and drivers are intimately familiar with the circuit in southern France.

Audi, by the way, has very good memories of its most recent racing commitment at Le Castellet: in 1995, Frank Biela won the Touring Car World Cup there in the Audi A4 quattro against strong rivals.

Originally, the diesel racing sports car that is internally designated as “R15 plus” was to make its racing debut at the 1000-kilometer race at Spa-Francorchamps. The Belgian endurance classic continues to be on Audi Sport Team Joest’s race schedule as the final dress rehearsal for Le Mans. However, to complement these plans, Audi Sport also wants to use the season opener of the 2010 Le Mans Series (LMS) on the high-speed circuit at Le Castellet to test the “R15 plus” in racing conditions.

“We’re on schedule with the additional developments we’re making on the R15 TDI and so this race should be possible,” says Head of Audi-Motorsport Dr. Wolfgang Ullrich. “Le Castellet is a race track that lends itself pretty well to testing for Le Mans, and we’ve frequently used this circuit for our Le Mans preparation. The 8-hour race distance makes the race of further interest to us.”

Purely for logistical reasons, Audi Sport Team Joest has registered for the 2010 Le Mans Series. “But this should not at all be interpreted to mean that we will be contesting all five LMS races,” said Dr. Ullrich. “At the moment, we are only planning to race at Le Castellet, Spa-Francorchamps and Silverstone.”

The 1000-kilometer race at Silverstone (Great Britain) on September 12 will mark the finale of the 2010 Le Mans Series and simultaneously kicks off the Le Mans Intercontinental Cup, which Audi Sport Team Joest will tackle with two R15 TDI cars.