We have DBP Edition 30, when we picked it up, it looked mint and was glad we picked that colour, however it does not look as good when dirty, and shows up dirt a lot.
We have just orderded a 3dr GTi in white, I was a bit nervous, but not because of the actual colour but because I have a white company Volvo already!
As for white and dirt, I don't think thats the case, it still looks ok when a little dirty IMO.
Was considering red, but on the mk6 the grill does not stand out that well.
Time will tell, but I'm looking forward to the new one.
Dave