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For the 2010 model year, the big powertrain news from General Motors in the U.S. has been the launch of two new direct injected engines, a 2.2-liter four cylinder and a smaller 3.0-liter version of its high-feature V6. The latter engine uses its new fuel delivery system to help it achieve similar output to the previous port injected 3.6-liter while using less gas. That engine will see duty in several vehicles for the new model year, including the new Chevy Equinox, Cadillac SRX and CTS and the B

Along with Autoblog lensman Drew Phillips, we did the last leg of the Audi Mileage Marathon in Car #5: an Audi Q7 fitted with a 3.0-liter TDI. Our route lasted four days and took us from Las Vegas to Mammoth Lakes, CA, to Monterey for the final ALMS race at Laguna Seca, and then to Los Angeles. Unlike almost every other group there, we weren't trying to set any mileage records, we wanted to see how the Q would do when driven like we normally drive. After four days of drinking the oil-burning Koo