If you are refering to the silver INSIDE the turn signal assemblies, I would say the most refective silver would be the choice.
If you are refering to the silver you see on the outside then the one for the wheels may be close. As far as around the headlamps, the only silver I can remember (without walking outside and looking, ok, I am still in my jammies) is on a Skylark, not a Gran Sport. The Gran Sport has semigloss black on the headlamp bezels and grille where the Skylark has silver.