Was just giving this thing a dusting over, damned near impossible to completely purge it of these little particles, especially when you shine a torch on it. An area you thought you'd cleared has suddenly collected dust again. More than that though when I shone the torch on it I saw all manner of scratches and scuffs that I never noticed before.
I use the dust clothes that Hot Toys provided with figures like the DX13 (for the liquid metal T-1000) and the QS002 Endoskeleton so unless those clothes picked up harder particulates (possible as they were themselves just lying around) which then scraped the Batmobile in places...either that or the scratches & scuffs were always there and they simply aren't visible unless you examine with a torch.
But anyway, I figured it'd be impossible to keep this thing totally scratch-free for all time and sure enough.