In the event of a prolonged power blackout, backup generators frequently runoutoffuel or suffer performance problems when they operate continuously for more than a few days.
This is, perhaps, the only car in the world that really needs one -- given the fact that if you runoutoffuel, you're dead in the water -- and it's nowhere to be found.
He told a recent group of visitors that the fuel-tax escalator might have run its course, pointing out that the all-party consensus which had once sustained it had now collapsed.