I've had white cars for years, and I guess there was a time when they were a bit stand-outy, especially a white Mk5 GTI. Not any more though, there are loads of white cars out there, and for me they stand out no more than a nice black or red. Now, when it comes to your oranges and your greens, now they do scream "look at me" 
I dunno. Silver is about the most common colour on the road and my current silver car still stands out. Stands out is a bit of a blunt phrase. What I mean is when you see it you think "that is a cool car" and even 4 years after buying it about 50% of the people who see it/ride in it complement me on it. I'm not saying white will be showy or anything, I'm just saying I think it really makes the car look good (especially at night). CSG and the other colours also look awesome, better than white sometimes even. But even when they are at their best I think they are less noticeable. You walk right past them, but with white your gaze lingers a bit and you think 'that looks cool'.
Its hard to get across what I mean without sounding like I think CSG or another colour is less good, or without sounding like white is like showy bling, cause I don't mean either of those things at all.