Originally Posted by mick78
[...]where over the time you notice neat little details, or just some angles that are really making a design a win
This is the crux. When you're walking around a car and appreciating its design, you view it from a different angle then what is shown in the press pictures. Plus you can take in the details, of course.
There are only a few cars I've changed my mind about after seeing them in real life, but when I did, it was a 180 degree change.