Hard to say- it would probably be any bright hue, such as yellow, pink, red, orange, etc. Cars are usually never painted in these colors because owners have to pay more insurance for brightly-colored cars; they are believed to cause a greater distraction than cars painted in white, black, silver. brown, or blue. Unless you have the money to pay more insurance for the sake of a beautifully colored car, you may want to stick to a non-distracting color to avoid over-paying for insurance.
If I had to guess, brown cars are probably the least popular, but it depends on the type of car; certain cars look old-fashioned and classic in brown, but that's just my opinion.
silverwhiteblack
the light green car is the car that gets sold the least because it just to bright but really is a nice color
EDSEL
Yugo
there is no real answer to that as the color of someones car is their opinion so its a biased question
Black is the most popular car color in North America.
green
the most popular is beige and white together. the least is white and black. or red too. black is second popular.
If your talking about the car, like VW, the most popular color is yellow, if your not talking about the car, sorry
black
red and black
yellow. actually it was white