i think i'll go for a car one, dunno which tho, i dunno if i shud find a cheep one so i can do it too, or an expesive one and i just sit, watch and get jealous.
My dad done it about 10 years ago - went round in a formula ford (I think) round Castle Combe circuit and he still talks about it now, well worth the money and it is something the rest of the family can go to to cheer him on.