My goodness, this is a real Aladdin's cave of old British cars. Ian, the owner/manager, is a very friendly chap and opened up just for the two of us to visit. We were absolutely gobsmacked by the number and variety of cars packed, many double-decked, into these large barns - everything from an army of Morris Minors, to more Austin 1100's than I've ever seen in one place before, a Daimler, a Humber Super Snipe, a number of Ford Prefects of various ages, Jaguars, Bentley, a Rolls-Royce... it just went on and on, one wonderful discovery after another! I think every possible model of Vauxhall is there. At least 360 cars of various makes.
Now, they're not all in concours condition. Some are pretty ancient and rusty. But they're all kept in damp-proof, secure surroundings, with considerable amounts of information on each model and (where applicable) its donors. The walls are covered with old number plates, badges, and car-related ephemera.
We took nearly an hour to look around, and that wasn't exhausting all the interest of the place.
The museum is easy to find, out towards Cape Kidnappers, where there's a very good cafe for refreshment. You'll know you're in the right place when you see the ancient gold Daimler Sovereign up on a stand out front.