In the tenth race of the American Le Mans Series on the new street circuit in Detroit, the Audi R10 TDI of Emanuele Pirro (Italy) and Marco Werner (Germany) placed second overall and first in the LM P1 class, having been in the lead until four laps before the end of the 2:45 hours of the race. Dindo Capello (Italy) and Allan McNish (Scotland) in the "sister" Audi R10 TDI completed an excellent team performance with third place overall and second in LM P1.

Audi celebrated the 20th consecutive victory in the LM P1 category, the "king class" of the Le Mans prototypes and secured two races before the end of the season the Manufacturers title for the eighth time.  "Second and third places overall for Audi on possibly the least suited circuit for our R10 TDI is a positive result, ", stated Audi R10 TDI driver Allan McNish.

“Bosch is proud to be a part of racing's return to Belle Isle, sponsoring the September 1st Detroit Sports Car Challenge.  Supporting the American Le Mans Series event is a natural fit as it offers a perfect platform to highlight innovative technologies, such as the diesel common rail injection system on the highly successful Audi R10 TDI.  Clean diesel technology is a winner for racers and consumers alike offering improved fuel economy, reduced emissions and increased performance," said Chris Qualters, director, marketing, North American Diesel Systems, Robert Bosch LLC.

Bosch utilized its sponsorship of the September 1st ALMS race to promote the Bosch brand and its role in the development of clean diesel technology.  Through pre-race advertising and media promotion and signficant on-site visibility, more than 100,000 atttendees over the 3-day weekend could not have walked away without seeing"Clean Diesel Power by Bosch".

On the track, as development partner, Bosch supplies the specially adjusted high-pressure pumps and piezo-inline injectors for the diesel common rail injection system on the Audi R10 TDI. The introduction of diesel technology in the Audi R10 has proved a success. In 2006, the Audi R10 made racing history as the first diesel-powered car to win the prestigious 24 Hours of Le Mans, a feat repeated this year. Additionally, the Audi R10 capped off a successful first season by becoming the 2006 American Le Mans Series LMP1 race class champion.

The technology that assists in the Audi R10’s racing success is available to American drivers today and offers numerous advantages. Today’s diesel passenger vehicles, in comparison to gasoline vehicles, provide an average increase in fuel economy of 30 percent; a decrease in carbon dioxide emissions by up to 25 percent; and, an increase in torque (especially at low rpm)– the force that allows cars to accelerate smoothly and powerfully – of up to 50 percent.

Over the years, the development of clean diesel technology has been greatly influenced by high-pressure diesel injection systems from Bosch. With the introduction of common rail technology in 1997, Bosch brought a new dimension to the diesel engine market, resulting in cleaner, quieter, more efficient and responsive vehicles. Bosch’s new diesel technology advancements have helped further position the company into the motorsports industry and solidify its position within the automotive industry as a leader in powertrain development.