£6 per adult...I'm guessing you pay after you have parked...so just park and jump in then I presume you don't have to go through a walk in gate?
But someone will be along to answer better soon
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407BHP and 340lbft
TD GT28/32 hybrid turbo, 3inch decat, 2.75inch exhaust, air intake + large MAF, injectors, fuel pump, tubular manifold