Silver metallic is very hard to match, even a slight change in how the metallic lays down will give a different shade.

The last pic on your first post looks like something from the " How To Use Filler " instruction sheet that comes with a can of filler.

I vote for a black bumble bee stripe up the quarter panel and across the trunk! ( Like a 70's Dodge Charger or a 2K Dodge truck )

Extra points if you incorporate a Mercedes star in the middle of each quarter.