Many of the production candies are sprayed over a red metallic base. This makes it easier to get a more even color. The factory paints the cars with robot systems... so they can fine tune it.

I recently did graphics for a guy who had a newer candy red MoPar. He started with a small dent in the hood. The dealership painted it... and eventually painted the entire front end, blending the candy halfway down the sides. $1800.00!