[source: Audi AG] Audi e-tron prototype tows trailer with Audi e-tron Vision Gran Turismo concept car Long range and trailer hitch demonstrate suitability for everyday use The popular GTI Meet at Lake Wörthersee will be held from May 9 to 12. In on the action: the Audi e-tron prototype. As a towing vehicle for the Audi e-tron Vision Gran Turismo, the sporty electric SUV proves its excellent suitability for everyday use. This year’s GTI Meet ...