If I heavily modify my MoT exempt classic - will I alter the MoT exemption status?

I have a 1953 Morris Oxford MO which, as a historic vehicle, is MoT exempt. I would like to replace the original engine (now dead) to a more reliable and powerful one, maybe a V8 with updated suspension,...

How much is my 1981 Volkswagen Scirocco GT worth?

Could you let me know an approximate value of a 1981 Volkswagen Scirocco GT?

What fuel should I use in my 1963 Velocette?

What fuel should I use in my 1963 Velocette?