"There is one company that makes buses with wheel motors which quadruple the fuel efficiency of the current best diesel bus" Given that buses are surpassed onl

"There is one company that makes buses with wheel motors which quadruple the fuel efficiency of the current best diesel bus" Given that buses are surpassed only by garbage trucks in the number of stop and starts they make in a given distance I suspect this has much more to do with scavenging energy during braking than it does with the fact the motors are in the wheels.