£15.50 for 2 tins of diablo, plus 54 miles in my little diesel fiesta about a fiver in fuel tops. Best deal I can find online [without spending hours n hours] is £18 for 2 tins plus £5 delivery, along with whatever damage the mungos at the courier firm subject my ammo to.
I still come out on top, plus a nice day out in stratford upon avon and its wide selection of decent pubs and eateries