The Audi Q7 V12 TDi Started as a concept, now it will become a production model in Europe for 2009. This Q7 is equipped with a Impressive V12 Diesel that produces 500 horsepower and 757lb-ft of torque, making it the most powerful diesel suv available. The body of the Q7 has been modified to create a more aggressive look, to reflect the big 6.0L V12 Twin-Turbo Diesel under the hood. The six-speed tiptronic has been reworked to handle the additional power from the V12. Top speed will be electronically limited to 155 mph. 0-62mph acceleration in 5.5 seconds. 20.8 miles per gallon average. Audi has not announced if the if the will be available in the United States.