Most hydrogen-powered cars are built for efficiency, not power, but Pininfarina aims to change that, with the Pininfarina H2 Speed Concept. This supercar uses hydrogen fuel cell technology to generate 500-horsepower from dual electric motors, complete with a direct transmission, dual wishbone suspension, carbon fiber chassis, and carbon ceramic brakes, enabling it to go from 0-62 mph in just 3.4-seconds. Best of all, it produces absolutely no emissions, just air and water. Click here to view the first image in today’s viral picture gallery. Continue reading for the five most popular viral videos today, including one of an epic Grand Theft Auto 5 police chase.