Hah, just remember i own a skyline, so i'm into a completely different style of cars to you's.
I was thinking of putting the whole black and white leather trimmings in my car but decided not to since this is just a temperary car for me.
I don't like cars looking "old". If they are an old car, i like them looking new. And yeah those colours look old school, i'd completely change all the carpets, roof etc to black and then the seats to white. Cars don't have that browny colour interior these days, thats why i'd change the colour, anything that brown i'd make black or white.