Wow Philjb so sorry to hear your story and I’m very humbled and slightly embarrassed into getting drawn into the benefits of one car vs another when we don’t know each others situation.
I have just returned from Canada where long drives were normal and actually it was ok, but the roads were much quieter than here, I would also suggest that you need to get passed Manchester before the roads quieten down here.
I guess you drive close to my house on your Scottish trips if you go on the M6? I’m junction 36 just as the hills start to appear.
Reading your Joke your car is already here (Tesla or IPace) lol!