i dont think there are too many GS in almost brand new conditions.
it is a very special color.
the darker wheels amd tint work well with this color.
swapping out the steering wheel is a must. may be he can get you a set of the gunmetal gs wheels?
As the others before me -> 3x good looking, and an especially rare color.
If you like good contrast, go for darker ( eg. gunmetal GS ) wheels.
I have black GS with gunmetal wheels and light cuoio interior ( nearly the same shade as this GS on the outside ). I like contrast