It was a clearly different unit, look at the wheel caps.
I'd repeat the question, according to who is this even likely a materially different car? Why does a wheel cap mean it's a different car? You could make this argument by pointing to literally any difference, like a sticker - it doesn't add an credibility to it.
Actually, only the demo car up front and close had different wheel caps. The car that accelerated was similar looking than the one that flew.