Audi Urbansphere Concept Debuts As Self-Driving Electric MinivanStaff·May 31, 2022Electric VehiclesFeaturedNews & Reviews The roomiest Audi ever measures 216.9 inches in length and 133.8 inches between the axles but only seats four, so what gives? Source: Audi Urbansphere Concept Debuts As Self-Driving Electric Minivan