I'll set my drive time zone to be centred on Brum with a 600 mil radius
A while back I did think about games. I couldn't think of anything, but then I never really thought about it much.
I remember a board game that I played once which was based on the London Underground. No, not Mornington Crescent
This game had you going around visiting set locations (chosen by draw, so perhaps you have to visit two museums, Lords, and Buckingham Palace, say). You move round with dice ("3" would move you 3 stations, etc).
I can't remember how it happened now (double 6??) but it was possible to disable interchange stations. Hence you could make it more difficult or even impossible for the opposing players.
ANYWAY, I was thinking of something like that but I don't know how it would work.
Richard