man in simple language...a gloss paint is a paint which is shiny but doesnt have metallic effect..its a simple shiny paint like e.g snooker balls...metallic paints have tiny particles in it which give an effect of metal...whereas a pearlescent paint was used to be made by crushing real pearls into the paint (thats y used to cost a lot) but now the same effect is obtained by crushing plastic pieces..this paint has the property to change different shades..like from one angle it would look orange n from other it would look green or blue...as far as i know corollas n hondas come with gloss n metallic paints both.