Audi joined the ever-growing SUV market in late 2005, when it unveiled the Q7 full-size at the Frankfurt Motor Show. Audi launched the SUV in North America for the 2007 model year and since then it has received numerous gasoline and diesel powertrains. Although the German brand showed a hybrid Q7 concept as early as 2005, Audi didn’t develop a production model for the first-generation Q7. The study came with a 4.2-liter, FSI engine and an electric motor that provided 150 pound-feet of extra torque. As Audi began testing the second-gen Q7 in 2014, a hybrid version of the SUV has finally started to take shape.