[iampivot]

I guess they will still need a cv joint, just because wheels get out of alignment all the time.

That aside, it would interesting if someone made a 3d model one could print to try this out at home for small robots.

[mtrovo]

Looking at the video on their website it seems the EV motors are supposed to be mounted directly into each wheel, then you only need to account for oscillations on the X and Y axis.

[bluGill]

I got that impression at first, but looking closer, the motor isn't in each wheel. It is on the frame of the car - just much closer to the wheel than a CV joint allows.