These figures represent a 10 percent improvement in fuel economy compared with the previous model, due in no small part to the new start - stop system. (motor-prime.com)
These standards represent, by far, the most significant increase in fuel economy in three decades. (ucsusa.org)
If you're not looking for maximum performance, the A7 TDI is the one to get, with no loss in performance but a serious gain in fuel economy from its diesel engine. (kbb.com)