XJS values as a car approach's historic tax/mot

[Lastmin]

Just something I was musing today, I've not had a car this old before (my car was built late 1985) I was only born in 1979.

With the rolling 40 year historic classification and the bonus of tax and mot exemption have people found those cars go up in value or does it not really make much difference?

Free tax and no mot day stress would be lovely.

[poprivet]

I have doubts that the rolling exemption will be continued much longer, I hope I am wrong.

As for MOT, the car still needs to be road legal. I would still like an independant safety check even if there was no formal requirement.