From afar, AW and MW look similar (IMHO). However, under the sun, it's quite different. Some like AW because of it's purity (pure white) and sportiness but some (I am one of them) like the MW more because it just sparkles :-D. This is the MW car at my dealer's lot.
http://www.flickr.com/photos/7226418...7630153797690/
A week prior to that picture taken, I saw the same car inside the dealership showroom (not under the sun). I told myself, why would someone would pay $550 for this color while it's "exactly" look like AW.
But as soon as the dealer took it out under the sun, the color changed.
Mine (on the Dover Highway - arriving 8/10) will look like that except it will have the standard 18" Sports Wheel.