She's the dark Decepticon counterpart to the Autobots' holographic computer avatar, T-Ai. The concept art notes the symbol on the crest on her hat, which is the logo for the Combatrons in Car Robots.
This version of Mirage is cast in clear plastic to represent his holographic "clones" in the ... is also based on the character's earlier concept art, much as was the case with other figures ...