>>9724161Ages ago an anon explained the rationale for using the Energon colored limbs and it made enough sense. You had to go wit hteh idea of what molds they could use for Prime since that entire combiner would be a reuse, plus it has to match Motormaster well enough.
-Dragstrip/Mirage: Works well enough.
-Offroad/Ironhide: You have to pick some Autobot for it. At the time using a Trailbreaker and Hoist wouldn't work well since you need retooling, so you pick someone that works with it. This ends up being Ironhide, since they planned the alt head of First Aid to be for a future Ratchet (who, sadly, didn't get a regular release over here) so the basic mold is used for both.
-Wildrider/Deadend/Prowl/Streetwise: Alt head is already being used, but the car is reshelled for Streetwise, so you go and use the alternate Prowl head.
-Breakdown/Sunstreaker: At this point, the colors of Optimus match Energon Prime well enough, but using Sideswipe would give you two red limbs, so you use Sunstreaker who's close enough in color to the drill.
