Nintendo Switch has a port of Mario Kart 8, and so it has its own motion control steering wheel controller, too.
Digital Foundry's John Linneman, who is at a Nintendo Switch hands-on event in Frankfurt, Germany took a few pictures of the wheel for us, and they reveal how you slot a Joy-con controller inside to get the thing going. The wheel works similarly to previous versions. There are shoulder buttons on the back. It looks tiny.
GAME has a "Joy-Con Wheel Pair" online for Ł13.99. I can't see it on Amazon.