[It's Just Eric]

Coming from the guy in charge of colormatching at a bodyshop, svxcess is dead on right.Now for me to type till my fingers bleed...
The reason for color diffrences right out of the factory is they typically mix all their paint in a huge vat. Theese vats are used for all he colors, and even after a good cleaning some residual tints from another color can throw it off.

There is so much involved in even just the last few stages of bodywork itll make your head spin...and most of it will show if its done wrong. I know you have it set in your mind to use that particular bodyshop...but take a look at the work they do. If you can tell where there's been a reparir at all...odds are they arent all what they are cracked up to be.
Keep an eye out for overspray(Check rubbers, cornrs where doors meet, that kinda thing) edges in the paint (Usually around rubbers, moldings, ect.) lumpy bodywork, halos(this is the unfeathered edge of primer under the basecoat, caused by improper sanding prior to prime) Pinholes (Pretty self explanitory. Usually they'll be in a patch) dust / dirt in the clear, orange peel (the svx has no peel from the factory...to match this properly the car has to be wet sanded and buffed) Hard lines in the basecoat (caused by an improper tape up prior to primer...hard to explain) sanding scratches (Itll look like comeone ran a comb through the basecoat...caused by too coarse inishing grit on bodywork, primer, or during stripping) ghosting in the blend areas (The new paint looks like its hovering over the old. Caused by poor scuffing before paint) buttholes (This is an area that was a chip and is now a dent. Caused by "digging" a chip out rather than doing it right) waves (Look down the side of the car...youll know what I mean if it has any) Repairs that werent repaird..body lines, gaps..hell, even look down the side and make sure the pinstriping was put on straight

Lemme know if you need more...for now, my fingers are bleeding