Max,
We all know how that feels. And no, you can never go back to ”normal” again now that you know how it feels to be behind the wheel of a running XJ. 
(or ”ex-jot”)
So when your fellow countrymen wonder what is wrong with you, you can just nod and carry on as you know something many of them do not
Welcome to the club, now you are a full member with honors, sir!
Cheers!
Ps. Greetings from Helsinki, we just got some snow, so no driving for me for a while, although the MKV DHC would need an MOT. 
Ps. 2. I got it done, well the directional indicators do not work, but they were not compulsory back in 1950 so I may get away without them. The weather however is not on my side now. The posting on the Saloons forum: What did you do to your saloon today? - #10 by ptelivuo