I have an 07 basic Grand Prix and the headlights look terrible. I want to replace them but I can't tell what lights were on it originally. I checked the option sheet and there is no mention of the colour of the headlights. They appear to be clear on the surface with black underneath. Was this based on the exterior colour which is listed as light tarnished grey or how do I tell what colour they were originally. What is the name of the colour. Are they called black, or smoked or tinted?