Beware - The Model3 (as well as later Model2) Wheels have a AC-Motor directly attached to the Wheel and they lack a Clutch. These wheels do NOT work with the l2m2.
Don't quote me, but these later Model2 Wheels, the old Model2, the Model1 stuff etc. all have the same mounting mechanism (4 large screws) - at least on the Twin-Units. I would guess a Model3 Twin still uses the same mechanism.