An Off-Road Electric Bike--With Gas Tanks in the Wheels

Reportedly in production, the Ultra Bike 2x2 is a very unusual vehicle concept. It's a utilitarian off-road electric bike, with a 1KW motor in each wheel powered by a 48V battery in the lower center of the frame. The unusual part is that the wheel rims are actually fuel tanks meant to hold 6 gallons of gasoline. Why do you need gas, for an electric bike? Because that white thing you see in the frame, in the area where a fuel tank would normally be, is actually a gas-powered...