Fred- Griot's garage has a gel product that is applied one per year and has the "New Tire" look, not too shinny like yours. I'm concerned about spraying the typicial dressing on the white letters and having problems.
"natural tire cleaning and treatment product from Zymol to clean and detail the newly painted tires and it seems to work well without damaging the paint"
Is this the product ?
$28 (ouch)