I have a Panda Dynamic Eco in New Orleans Blue and it looks loverly in the sun, nice and bright, really suits the car, My fav colour.
I had the choice of white or blue, but seeing the two side by side the blue looked classier.
White - Looks very nice, but hard to keep it looking clean
Grey - a bit dull for a small fun car. My least fav colour
Red - is very nice and suits the car well ( i've seen a red one locally ). My second fav colour
Black - Looks great, but a real b****** to keep clean ! ( I've owned a black car before and they always look dirty, be prepared to clean it at least 2-3 times a week if you want it to look nice ! )