The inside of the hood and trunk on my Graphite Shadow car are painted flat grey. They are not Shadow Graphite as the outside of the car. I've never seen this before. Are other G37s in other colors painted flat colors?

 

Very typical. In areas that will be covered up or not seen, they typically just do the base coat and don't bother doing a top coat.

 

yep mines the same way (same color GS)

 

Mine is blue slate...inside of hood and trunk match exterior...just without the clear coat.

 

the whole body is painted....but as stated, the unseen areas are only base coats...no clearcoat