pearl paints tend to fade over time, as does almost any color short of white really(except pearl white again the pearls will fade). Now that will depend on how the paint was treated/washed/waxed/protected and how much time it spent in the sun but when they were new in the right light it would start blue, flash to green/purple and then a quick gold/orange then back to blue. I had been reading about it till that time and it didn't sound real but that first time one drove past me my jaw was on my chest.