Falling in line with many of the other car manufacturers, Audi has developed a hybrid for its largest sedan the A8. This sedan will be “fuel efficient” for its size, however since the traditional A8 is not a big seller here, Audi will not be bringing the car to the US at this time for sale. For now the cars will be sold in Europe as its main marketplace. However, Mercedes will be selling their S400 which is in the same class as the Audi A8. Since the S class Mercedes is a much higher selling car, the will be brining their hybrid to market here in the US. Reviews on the handling of the vehicle are great. We are glad to see the research happening to make advancements possible.