This weekend I visited the Tesla store in Natick MA. While parked near their demo vehicles, which both happened to be white, the difference between my Pearl White Model S (in the foreground) and White was quite obvious. Given the limitations of jpeg images, the effect is a bit more subtle here, but you still may be able to notice that my pearl white car has a deeper, warmer tone. The difference is also quite apparent when you compare the large wall-mounted color samples in any Tesla store. I'm glad that I opted for this paint upgrade. It looks spectacular in direct sunlight.