[JasonB]

Everything has a reason. Sometimes not very obvious. Here are some reasons for a green 2D.

I race in a club where many of my fellow racers like to jump on main liveries. 8 friends will show up for a race. There may be 2 or even 4 of the same car. If 4 Chaparral 2D's show up. Three need to draw straws to see who gets to race white #7. I simply put my green #9 on the track and almost everyone chuckles. I never need to draw straws.

There are also three light blue Matra MS10's in our club. All three have different numbers. But at racing speed, the camel yellow Matra tells me who's who.

I will always choose a fantasy livery and colour every time. My vision isn't what is used to be when I was younger. I can always see my strangely coloured cars without squinting. 

If white was totally off limits. What colour would you paint a 2D to show off it's curves?

Yup fair points well made.

I guess if I wanted to distinguish the car I might be tempted by blue stripes, or if I really had to discount white as the main body colour, maybe a blue body with white stripes. I'm a bit of a traditionalist, so breaking away from white would be difficult. Each to their own though.