EDIT- Patrick beat me to the reply
Hi Simon,
It's quite an interesting show - primarily hundreds (a thousand or so

) tractors from mini crawlers to tractor-pulling twin engine jobbies!
There are usually also about 50 or so classic cars and 30+ or so Land Rovers.
Lots of stalls from country foods (got to try the beaver pie

), wines etc., country/farmer's clothing, crafty stalls, to stalls selling tractor/farming parts, new and used. Plus an interseting autojumb
You could spend a full day just going round the show and still not see everything.
It's well worth going - it's free for exhibitors (though if we have a club stand we have to pay

hence me suggesting individual entries).
No problem with your S3 - nobody judges your vehicle, unless you want them to
The only issue is they don't like tents/caravans on the show area.
Some have got away with it in previous years, but there have been rumblings for the last couple of years to make tents/caravans camp in the camping area.
Fine if you're living in the back of your '109" camper', but don't count on being able to put a frame tent up.
Then again, you should have your awning frame on by then, shouldn't you
Cheers,
Robin.