here is my second car ever. i tryed to do a render.its not very good.i used final gather and none other light.i really need some conseil on rendering a car.to add the reflect on the car, i only use 6 white polygone plane and a hdri image .lol.should i use final gather or my own light when i render a car. other question, when i use final gather, should i use other light or not.last question,whats are these map doing on my car :
-difuse map
-specular map
-reflective map

ok here is my cheap render