From paddocktalk.com

The new V12 TDI with its supreme performance is a trademark Audi engine. Ever since it first invented the TDI engine 18 years ago, the brand has played a pivotal role in advancing technology in this field. Diesel engines from Audi are powerful, efficient and smooth, and they have demonstrated their superiority both on the road and the racetrack.

368 kW/500 bhp - the new V12 TDI engine in the Audi Q7 is a veritable pageant of technology and represents the new pinnacle of passenger car diesel development. The twelve-cylinder power unit provides unquestionable proof of the pre-eminent technological expertise at Audi. 18 years after the Ingolstadt brand invented the modern-day TDI engine, it is presenting it in an all-new high-tech, range-topping guise.