You're watching the world's fastest Postman Pat van setting a record run of 17.4 seconds at 84.28 mph. It might just be the cutest drag racer we've ever seen, and it's for a good cause.

We've heard that this little thing (basically a caged 500cc kart with a bodyshell) is headed to Connor's Day, the car show for a boy with just weeks left to live. We couldn't think of a better place for it to go.