I was thinking that about 2minutes after it drove up. There is so much you can do with decals and colour. Definitely looks better, or more common like that. Dunno what will work to fix the rear of the box though.
I played around with this too. Personally my one dislike with CT is the wheels and tires. I was thinking the black stripe on the side could be used to differentiate the models. Single, Dual, and Tri stripes.