So a lot of wheels (for my understanding) is painted Hyper Silver.
Many replicas and oem wheels.
The 'authentic' HyperSilver finish is not available in the US as it is heavily lead based. (information I googled)

I was wondering if any of you ephatchers, wheel repairers, and paint guys know where I can find this color in a touch-up rattle can or other form.

Maybe something very very close?
Maybe even a solution to one of your hypersilver projects from the past?