Hah, the way people are whinging about parking isn't very British... unsurprisingly it's slippy on muddy fields in the snow, somehow even leaving at 10pm after most had already churned up the field my RWD m135i had no issues 'escaping'.
I'd go again next year even in the snow tbh, thoroughly enjoyed it. Something somewhat surreal about pre-war cars drifting sideways around a track whilst it's snowing.