This is the most powerful production passanger diesel ever. It is a V12 TDI with 6 liters of displacement, it pumps out an amazing 500 hp and a tree stump pulling 738 pound feet of torque. This allows the Audi Q7 to accelerate from 0-62 mph in only 5.5 seconds. The Audi Q7 will be ther first vehicle to get the engine in 2008. The Q7 with the V12 TDI has European fuel economy rating of only 11.9 liters (combined) of diesel per 100km. The Mercedes-Benz ML63 AMG (503 hp) is rated at 16.5 liters. So you can see that the Q7 is much more fuel efficient. Translated to the current EPA standard, this would give the Q7 V12 TDI a combined fuel economy rating of 20 mpg,I think that the actual rating would be a bit lower, perhaps 16/20. The Mercedes is rated at 12/16. The new TDI uses some technology from the Le Mans winning R10 such as the 2,000 bar (29,000 psi) common rail injection pressure, previously 1,600 was the limit. It already meets the 2010 Euro 5 emmision standard. It will debut in Paris this month. This engine would later be put in the A8 probably in 2010. Unfortunately, the V12 TDI proabaly won't come to the states.
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