What does the Audi A8's hybrid engine do for fuel efficiency?

I am considering purchasing an Audi A8 and am wondering about the fuel efficiency of the hybrid engine. Can you explain how this system works and if it will actually save me money on gas in the long run?

Hi Maria, the Audi A8's hybrid engine uses a combination of electric and gas power to improve fuel efficiency. When driving at lower speeds or in stop-and-go traffic, the car will primarily use the electric motor. This can significantly reduce fuel consumption.