Colours for my pimpin ITR???

Yo, I finally got the parts i needed for my revell ITR (2 10" subs, racin buckets, and a momo wheel) and i am almost done my body kit, I was just wonderin if any of you have some ideas for what colour i should paint the car??? I was thinkin gunmetal for the exterior but dont know what do do for the interior... yellow?? , red??

Maybe a candy base colour like a red or green or even a two tone for the car.
Interior...colour match it to the outside of the car

thanks for the advice pman