Having now spent a while looking through wheels, I think those rear wheels may be new.
My wild ass guess, is that they are new versions of the 719Ms that previously appeared in the F era.
They can't be 719Ms, because the 719M bolt pattern is incompatible with G series cars. There are also other minor differences, such as the crease pattern on the spokes near the center. And these mystery wheels are more concave than the 719Ms.
So I'm guessing sequel, just like the 930Ms are sequels to the 825Ms.
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