If you have an acceptable classic car they can work out where you can park within the clubs space inside the circuit - otherwise it is the modern car park outside the circuit at an extra cost,
Quentin
Interestingly there is a "happy few" list of cars allowed inside the circuit and it includes modern cars of either special sporting character or of makes that won at le Mans. So all Morgans are allowed whatever the age, all Lotus, all Maserati, all Ferrari , all Porsche except Macan. It even allows in the Xbow! See
here