Cool cars from the 2016 Geneva Motor Show

Pininfarina's H2 Speed is powered by a a hydrogen fuel cell and is described as "halfway between a racing prototype and a production supercar."

When it blasts past on the track, the only exhaust it will leave behind is water vapor.

The H2 name is a nerdy nod to the chemical formula for hydrogen gas. Designers faced the challenge of styling around the two massive hydrogen tanks needed to power the fuel cell.