Car needs refuelling after 100 years

Laser Power Systems have created a concept for a thorium-powered car engine.

The element is radioactive, and the team uses it to power a laser beam that heats water, produces steam, and powers a turbine. Eight grams would be enough to last the century.

Wait… what?  http://youtu.be/GQ9Ll5EX1jc

Too good to be true, this has to be a hoax.