Most people match the body color when painting the lower black trim.
Couldn't find any pictures of Gloss Black on Pure Silver only Dark Silver ...
I can't tell if the car pictured above has Aero Kit side skirts but if it does I think it would look better if the body color portion wasn't painted over.
Here's a picture of a 2nd Gen MCS
Aero Kit and Gloss Black lower trim ...
Gloss Black lower trim on a Pure Silver car would look more pronounced.