If your car is red
Red is a bold, energetic colour. Warm and sensuous, it gives off vibes of high energy and stimulation. People who like red might be, or might like to project the image of themselves as, ambitious and impulsive, courageous high achievers and risk takers.
If your car is black
Black subsumes all colours. It suggests power and mystery, with overtones of comfort and silence. Black says, "I'm at the top of the pack."
If your car is white
White is linked to innocence and purity. People who favour white might be dreamers, with an eye on the big picture or possibly searching for a bigger connection to life.
If your car is silver
You might be a communicator, someone who inspires trust. You may be someone
who reacts from a place of instinct and trusts those instincts.
If your car is green
Green is a friendly, calming colour, especially in current times and with its connection to the environment. Green brings to mind nature -- forests, grass, trees. People who choose greens might be observers, catching details that others overlook.
If your car is blue
Blue is an emotional colour, cool and calm, promoting relaxation and tranquility. If you like blue, you might be conservative and loyal; you might value affection and tenderness.
If your car is orange or bright yellow
Bright colours like orange and bright yellow say, "Look at me!" They're fun colours, full of flamboyant spontaneity and energy.
Bright yellow suggests an interesting personality, open to challenge and activity; orange is a happy colour that promotes good humour.
Bright colours are often marketed towards younger people who are at a time of their lives when it's normal developmentally to be adventurous and bold. So, what exactly does the flashy red sports car potentially say about its middle-aged driver?
Maybe someday.. but likely I will stick with the stock color. So I guess that also says I am too lazy to get it painted Blue 
-Jim
