The FBHVC have just published a fascinating list of figures relating to historic vehicles. Click on the link to take a look :- https://www.fbhvc.co.uk/historic-vehicles-the-facts
Some of them are:
1,538,927 historic vehicles are registered on the DVLA database
16 times per annum is the average number of times a historic vehicle is used each year
35% of historic vehicle owners currently contribute or would contribute to a carbon off set scheme