HPI Baja 5B Tank Conversion?

Someone sent me this photo, and I was just blown away! I have no idea where it came from, but man would I love to see this thing in action! Anyone out there have more information on this thing? It looks like it’s some sort of HPI 5B Baja conversion. Tanks normally steer with each tread moving separately.. no idea how thing thing even operates, but I want one! LOL.