Don't waste your time and money, like myself and many others did last year by going on the Sunday, only to find that most cars had already gone or were leaving, and disgruntled exhibitors were packing up.
No refunds were given to the dissatisfied Sunday spectators either, who were stood standing in an emptying field whilst, disgracefully, money was still being taken at the gate.
The organisers refused to issue refunds, and requested that we wrote and formally complained about this 'pi$$ take' and request reimbursement, yet "Surprise-Surprise!" no answer was received.
I would guess that the Friday could include many late arrivals.
So for spectators, really this is only a one-day event.