Just an idea here to help out, but I would find some good actual photographs of the vehicle. Especially any 90 degree angle shots you can get your hands on.
Since it's a not 1 for 1 model of the corvette you probably don't want to use them as they are or try phototexturing.
Instead load them in your art program, and skew/stretch/blur and alter them to fit on your mesh.
Personnally if I'm going to texture it myself then I go a different method all together though. First I don't even use UVW Unwrap or anything like that. I simply model every piece of the car seperately if it needs a different texture. Then I'll texture each piece individually as I go.
When I'm done I connect everything together, and then optomize it. It sounds like more work than it is, but for me it actually cuts the work down. Not to mention it avoids that "painted on" look.
Kind of like a wooden box. You could simply make a box, and texture it with a wood texture. No problem and it's easy, but it doesn't really look like a box.
Instead I like to model boards of the box individually with little differences. Then I'll put them together just like I'm building a box texturing them one at a time, and adjusting the texture a little here and there so one board is lighter than the next. One has a knot on it etc.
Then I'll make one side of the box that way. Optomize it, and delete all the backfaces. Then I'll copy it 6 times, and rotate and postition them all around each other to make a box. Finally I'll connect them all together.
Then end result is a low poly (not as low as a simple box but close) yet really realistic looking box. Then again sometimes I think I'm legally insane.
He who stands on toilet is high on pot!