I never knew Yellow was lightest :rolleye:I thought yellow was the lightest paint.
My dad is an automotive painter and he has always said this.
White paint is usually thick and opaque. it covers most colors pretty good.
Yellow on the other hand doesn't cover anything. Any slight change in the base color will show through on yellow paint.
But in any case, your only saving a few grams at most. Theres no way that different color paint would net even a pound of weight savings, so its really irrelevant.
OK for weight.
No for racing...........white and black in compare, the engine room temperature differs at least 10 degree