May depend on the viewer's monitor as well. For me, the windshield in the GC version is opaque, whereas I can see the interior through it in the Non-GC version and that looks 'better.' The Neon? green in the GC version looks better, it is pale and washed out in the Non-GC etc. I've seen pictures posted here (presumably using GC considering the source) where features mentioned were invisible unless I saved the image and boosted the Gamma in XnView. My monitor though is set the way that is most comfortable for my eyes.

"Democracy is a pathetic belief in the collective wisdom of individual ignorance." - H. L. Mencken