Summary: At the 2013 Frankfurt Motor Show, Audi unveiled not one but two Quattro concepts, that were very different in power trains and styling but were also previews to what future Audi models will look like.
Summary: At the 2013 Frankfurt Motor Show, Audi unveiled not one but two Quattro concepts, that were very different in power trains and styling but were also previews to what future Audi models will look like.