The Cybertron Downshift figure is an update to the Energon Downshift figure, who is is definately based on G1 wheeljack, even being named that in japan. You're only comparing him to the alternators version. not the original G1 figure, not the action master, and not the show model. and not on his previous form in energon that this is an "upgrade" of. THAT is why you're not seeing the similarities.