AMAZIN' MOTOR CARRIAGE!

I have no idea what this is actually called, nor who it's by (another foreign site) but I'm simply posting this because it's something I've dreamt about for a long time! It looks like something JML would invent...like....a huge project of theirs (most of their stuff are small and cost a quid).
If the carriage came with a games console or tv or something audio-visual, I would be content!