The museum fills several huge tin sheds with literally hundreds of cars from 1890s to 2017 but it's a long way away for most people down near the A303 at Sparkford and it's expensive. I only saw three Daimlers, a model for a child that had an oil leak under it so it must have a small engine, a 1919 light Phaeton and a red SP250.
You need to be interested in classic cars generally as there is a serious shortage of club cars.
There's a meeting in the car park for owners on the first Sunday of a month 8.30am for owners to chat, which appeals to supercar owners. However, April 1 is Easter Sunday so I'm not sure if anybody will be there.
I met Ian Russell with his silver SP250 there in 2016 as he lives very close.