Ok, as the OP - Bigh appears to not be around I have taken up the mantle of arranging this event.
I have spoken to the events team at Beaulieu today and reserved us an area all together for 10-15 cars. If you would like to attend the first thing you need to do is book your tickets yourself online with Beaulieu. Link below. Please buy yourself a "participant ticket" £10.00.
https://www.beaulieu.co.uk/events/simply-japanese/
In order to be grouped together we need to a