Thanks Trevor, and to everyone else who has responded with such kind words.
We have a 58 kilo dog, so have always needed a large vehicle. My wife has a Citroen C4 Grand Picasso which has been a great car for the dog, and indeed for us too. We are in the process of changing it, and I did look at the Jaguars, but their load height is too high for the dog to jump in and out without long term joint damage, and really there wasn’t enough height for her (the dog, not the wife) to sit up either. They (and the vast majority of other SUVs) were therefore ruled out, and we are buying a Skoda Enyaq - so going all electric.
That isn’t anything to do with the reason for selling my XK though: That was purely because it hasn’t been used for the two years since Covid began, and I didn’t foresee that changing any time soon, due to my damaged auto-immune system.
It seems that if I get Covid there is a strong possibility that I will die, and that does make me a bit wary of mixing with strangers! That has put paid to the social visits to pubs and restaurants with associated pleasant drives, which was when we went out without the dog, so were able to use the XK.
I know that I have done the right thing, but I do miss it like crazy!