We had
this Westfalia detachable fitted to our Vauxhall Astra with 13 pin electrics (also from Westfalia). It only takes a few seconds to fit or remove the detachable part, but a thick kneeling mat is useful as you need to get down low to insert or remove the key (not shown in photo). :huh: The plate that the 13 pin connector is fitted to swings down sideways through 90 degrees when required. Some of the plastic rear skirt on the car needed to be cut away to accommodate the bar. The bar was supplied and fitted by a local chain of towbar specialists.
The whole installation was about £500 and the OH can no longer complain about hitting her ankles on in when loading the shopping in the boot.
The tow bar looks the same as the factory fitted removeable tow bar shown in the car's user handbook.
Edit - we have the vertical detachable.