Gainsbourg,
I am not being modest, I have seen your work and don't think mine compares
If you have to choose between the Racing White and Pure White, I would rather say to use Pure White, Racing White is to creamy I think.
I use ModelMaster gloss white and airbrushed the roof, but I know that aside my 206 kit which is painted Pure White it is a different shade of white.
I think I am confusing the issue here, you should use the color you feel best suits the car
Ray