It was £800 for supply and fit of the carrier system, which felt reasonable since the factory option on the id.3 we ordered was £750 eighteen months ago. If I'm honest I haven't looked at the physical wiring, but I do trust our local installer and they've always done a good job for us previously on...

Interesting that you have had the tow bar fitted. I'm in the process of buying a new Cupra Born. My dealer told me that it was not possible to fit a tow bar to this model and even intimated that if I had a third party tow bar fitted it could nullify the warranty. Does anyone have any comments on this?