Can Thorium be used as a fuel to power a car?

![thorfium car.jpg]
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Are Thorium-powered cars in production? How fast can it go?
I have read some articles about Thorium-powered cars like a small quantity of Thorium will be able to power a car for many, many miles, and one needs to refuel cars once in a while only. I like to know the status of research on this, and also the safety issues in using Thorium-powered cars as commercial vehicles