At number 9 we find the Volkswagen Advanced Activity Concept (AAC) unveiled at the 2000 Detroit Auto Show. Powered by a V10 turbodiesel engine with 313 hp, the rugged concept was envisioned with four-wheel drive and an air suspension to create what VW referred to back in the day as a pickup truck with the “luxury of a top-class sedan.” It never received the stamp of approval, but some of the styling did rub off on the original Touareg.

You can read all about the 2000 Volkswagen AAC concept here.