Here is another confirmation that the Q7 will come with a V12 TDI. This report also goes on to tell us some key details about the new 500 hp and 723 lb-ft torque V12 TDI. The diesel engine will have a common-rail injection system with pressure of 2,000 bar (29,000 PSI), current common-rail engines top out at 1,600 bar. This is directly lifted out of the R10 racecar. The most interesting tidbit of information is the fuel economy. The Q7 V12 TDI is rumored to only consume 11.9 liters of diesel per 100 km. This translates to 20 mpg. This compares very well with the 16.5 liters consumed by the ML63 AMG (503 hp), EPA rated at 12/16. The Q7 will also fulfill the not yet enforced Euro 5 emission standard.
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