2006 Audi A8 L Front

Though introduced with only one model, the big Audi now offers both a normal-wheelbase model and a W12 engine, bringing the model count three: A8, A8 L, and A8 L W12, with L standing for the original long-wheelbase model. These same engines are shared with Volkswagen's Phaeton, as is the basic design, but as one of the world's few all-aluminum cars, the A8 weighs in at much less.