yes, assuming he's doing the renderings how I used to in school he should be able to match car color as well as he has the markers to do so.
prismacolor is just the brand of markers that they are.
to do marker renderings you normally trace out your subject and basically color it in with the markers, however to get the right colors you do a layering technique, so the lightest color has one layer, the second lightest has two, the third has three and so on. each layer is a different and darker color as you go on.
the rendering I did for school turned out good, but I would not enjoy doing a lot of them, those things can be very time consuming and I get bored personally.
kudos on the group buy, hope it works out well. and you should all appreciate what he's doing for you, cause believe me it takes a skill and a lot of free time to do it right. I don't even think what he's charging justifies the work.
