I've never been there before, but am familiar with the website and know people who have been there...
Those photos are quite old and my understanding is that at least some of those vehicles are essentially gone by now, but still worth a gander anyway, you never know...
That 1946 Austin commercial truck would be quite rare these days, at least rare on this side of the ocean, I do know they sold some left-hand-drive export examples of large British trucks here in Canada during the period right after WW2