First of all, it needs a big number on the roof pointing at the infield(on a counterclockwise oval(upside down in the skinfile)) Second of all, I think our team has all of the energy drinks covered!
Technically I'm fine with the size of the numbers, but the color does make it look smaller than it is. Please change the color of the numbers to either black or white, and while you're at it, see if you can increase the size of the numbers on the sides. Making the FBI just a bit smaller will yield you a better result.
Skin looks a bit bland there man :P. Slap some decals on that thing to liven it up a bit. However, gonna need to have the numbers a bit bigger than they are. Check the first post of this thread to get a general idea of the size, doesn't have to be exact, but tastefully close.