That's why Filipino startup H2O Technologies has developed the Salamander. It's a three-wheeler that can be driven on the road like a normal vehicle most of the time, but that can also take to the water when floods occur.

There are actually two versions of the vehicle – a gas/hydrogen model, and one that's fully electric.

The first version, called the HydrOPlus, has a 200-cc engine that runs on regular gasoline. Should hydrogen be available, however, it also has a fuel blending system that lets it run on a combination of gas and hydrogen. This should both cut down on emissions, and give it considerably better mileage.

The electric model is instead driven by a 3,000-kW 48-volt motor, that is in turn powered by four 90-Ah gel-type batteries. There's no word on range or charging time, or on mileage for the gas version.