What Vauxhall's have towing connectors ?

It's the towbar side harness. There is a socket in the boot of the car so it just connects straight in rather than having to tap into harness.
Years ago I fitted a towbar to a Senator and that had a socket on the nearside by the wheelarch that I used but doubt I'd find many in local scrapyards now hence wondering if Vauxhall used the same socket on other models. Also I can't remember if the Senator was 7 or 13 pin - suspect it was just 7.
I've managed to get a legal (rare) towbar for my Smart and as you have to remove rear bodywork for access to engine want such a quick release plug and socket as the towbar electrics will have to be disconnected at the same time.

Paul H