What I Wish I Knew a Year Ago About Vehicle Graphics
https://gregorykdph887.wordpress.com/2019/08/05/20-gifts-you-can-give-your-boss-if-they-love-vehicle-graphics/
Designing vehicle graphics is an art, and it's best done by a knowledgeable artist. It should be bold and appealing. It shouldn't be crowded. People trying to find a color change in the auto should pick the option