Hmmm. Maybe... Reverse Rodimus Convoy/Rebirth Galvatron (Rodimus head not included)? Shattered Glass Galvatron? Shattered Glass Megatron's Tank Drone given sentience and transformation ability by Shattered Glass Vector Sigma? I can't quite identify it either, but the colors really work great on this mold!
THX for your comments. I recently bought a new airbrush and chose these colors just to try. But I like it too...
Or it could be what happens when Reverse Convoy is reformated by unicron I really like the colors on this figure, I wish I could find the mold locally.