IF ONLY THEY PULLED LASERS. Lynne at Knowledge Problem notes the Principle of Complements in action: as fuel becomes more expensive (than it was in 1958, start at the top and keep scrolling), people look for less-guzzling vehicles, in this case the electro-Otto Cycle cars, better known as hybrid vehicles.

The Superintendent confesses a weakness for the Toyota Prius, which has a really cool energy monitor readout that looks like something from Anakin Skywalker's racing pod. But when the sales representative checked with the factory and advised him that the warranty was void if a technician found a trailer hitch on the car, that was a deal-breaker. Volkswagen did it again.