Gotta agree with hiro.
Here is my Tamiya Merc 500SEC painted with Tamiya primer white, Tamiya Pearl White, Tamiya pearl clear and Tamiya regular clear.
It's hard to take photo's of the color unless the light is right.
I wet sanded my primer before spraying the pearl on. I then would wet sand imperfections out on the color coats. Anyway, prep is the most important before you get the paint on.
Good Luck!
Chris