29. Audi RS6
With 605 HP and 3.9 seconds to 60 mph, the current Audi RS6 is faster than many supercars and also way more practical as well. This super wagon uses 4.0-liter twin turbo engine which pumps out 605 HP and can be tuned to deliver even more power. That is why it is a shame that this wagon is not homologated for the American market and we feel that company like Audi could easily do so if only they wanted to.