I know the feeling. Mine's up for sale and if it sells at a decent price I can move to an M3 for about the same money. Been looking hard at alternatives, but very little stacks up against the handling of the Mini (I've got an accellerometer and I get similar figures to the Lotus Esprit V8 that Top Gear tested 5 or so years ago).
Anyway, I'm sure you can still tag on the end of a Mini convoy and no one would mind.