Ultium offers 3 motors - 242 hp, 371 and 83 hp AWD assist. Larger more expensive vehicles use 1, 2 or 3 of the two more powerful motors. Cheaper vehicles (which was the subject at hand) would use the 242 hp motor and the AWD assist motor which goes in the rear. So deleting the rear assist motor leaves you with FWD. Not worth changing to RWD in that case.