Possible.
But that windshield area looks like the production car. The front roof pillar thickness (diameter/size) looks a lot like a stock Charger body. (The matte black '70 Charger photo I posted is a Fast & Furious car. The front pillar looks a lot thicker on that car because it has a rollcage tube there.) And that looks like the factory chrome trim around the new Batmobile's windshield glass (just painted black). You don't normally see these kinds of details recreated on fiberglass shells.
The vast majority of this new Batmobile is clearly customized though. Huge cartoonish fenders, the front & rear areas are totally customized, the engine is moved to the other end of the car, etc.