I will be bringing some provisions...
Big bottle of water for the car incase it needs it (i drive a rover, it's nessecary!)
Sleeping bag, airbed, tent, race helmet, crate(s) of beer, something for becky to drink (don't know what she likes yet) energy drinks, chocolate, and crisps in biblical proportions and most importantly, my phone, with spare charged batteries for hilarious video and picture oppertunities!