I'll try to show how the process works, and how the artwork progresses.
I use Corel Draw to do all my artwork.
I usually do the number first, unfortunately I did this work yesterday, so i wont' be able to show the steps required to create it. Total time for this was about 1 1/2 hours, though i was half watching "Bull Duhram", and half doing this artwork, so pure labor time was probably something like 45 minutes.

It's important to note that colors aren't important at this stage (colors change on Corel Artwork with a click of a button). I'm mainly concerned with the quality of the line art, and that the decal is clean. Orange areas on the number will be fluorescent on the real car.. the purple outline will be purple foil on the real car.
After the number, I get a good clean image of the side of the car. It doesn't have to be a perfect side shot to work (it makes it easier though!), but the graphics can be adjusted if an angled shot is all that's available.

First i need to 'block out' the areas that are going to be black, and have the honeycomb design. I use a bunch of triangles, and adjust them to match the curves.

With a click of the mouse, i fill these areas a color that stands out, to see how it all looks thus far.

Next I will need to adjust this to fit my body design, which i'll show in the next images.





