Where is the battery in a Audi A7?

How many kw does a train use? Are there any cars run with hydrogen? What is an injector coil? Where can one get hybrid cars? What happens in a hydrogen-oxygen fuel cell? What is the cargo capacity of the 2010 Hyundai Tucson with all seats in place? Which states have the most wind turbines? Are there any water heaters that save energy? What is a mpg on a car? Does hydro electricity use in aluminium production? Why does your diesel car lose power while driving? How many gallons does the gas tank in the 2013 Lexus LS-460 hold? How fast can the smart car accelerate? Idle surge problem while in neutral rpm goes up and down? How does the rain sensor work in a jaguar? Where does get n' go get their gasoline? What exactly does the term hydro electric mean? What form of energy is observed in an automobile? How many gallons does the gas tank in the 2008 Mazda MAZDA3 hold? What is a type of expensive car and a small portion of bread baked in a variety of shapes?

Where is the battery in a Audi A7?