Was the metal damaged, or is damage confined to the paint? The red may be from brick. What color paint do you have to match?
I've been able to fill bad chips with paint dabbed on with the paper end of a matchstick made into a point. Then, when dry, use a tiny file to get it flat with the rest of the surface. Finish with 600-, 1000-grit, rubbing, and polishing compounds. It's not a perfect fix, but neither does it catch the eye.
95 E320 Cabriolet, 131K