heads up if anyone's wanting to replace their cap due to engine grub and grime... just use a squirt of that Barry Scott orangeade stuff, or similar (try not to use the aggressive oven cleaners with bleaches, or anythign that warns don't get it on your hands, as they can eat into plastic) a quick squirt and they come up like new!
I think we upset a poor chap at Billing One year... he'd spent something like £70 at his stealer on a full set of yellow caps... he then noticed my old man's car, with it's bright yellow caps, and commented that we must've done the same as him, to tidy the engine bay up... when we told him we'd spent about £2.99 on the nearest kitchen cleaner at the little Spar shop or whatever, and about half a minute wiping them over before driving in the gate, well, he went a bit quiet. Presumably wondering how many bottles of ale £70 buys you...