I don't understand the obsession with battery cut-off switches in these cars. Is it a 'race track' requirement? Or, is it just a cool gizmo for the blond in the other seat to ask, "What's that do?". Most cars on the road do not have one. The safety case, in my opinion, is marginal. I don't really plan to do much 'race track' racing, however, the idea of a blond in the other seat is appealing!