https://www.westfalia-automotive.com/en/product-overview/towbar/audi-a7-sportback/305438900113-784/
#Cabling £138 https://www.pfjones.co.uk/audi-a7-towbar-wiring-kit-13-pin-oct-2014-on-305387300113.html
#Towbar £238 https://www.pfjones.co.uk/audi-a7-2010-onwards-westfalia-detachable-towbar.html