Ian Charnas, the inventor of those amazing windshield wipers that "dance" to your car's music, is up to yes good again (the opposite of "no good"). He's made a real-life Mario Kart video game using electric go-karts and augmented reality (!).
In this augmented reality racing game demo, players zoom around a track in real-life go-karts and pick up virtual power-ups to boost their kart's speed or slow down the competition.
The virtual power-ups are generated by a Microsoft HoloLens augmented reality headset on each player. The speed boosts (and reductions) are provided by some electronics I created that extend an existing go-kart system with this functionality.
[If you want to know more about it works, he explains it further on Hackaday.]
Ian is hoping that there's a demand for this real-life Mario Kart. He's got all the pieces, including a provisional patent, he just needs the right partner to get it off the ground in a bigger way.