Does the RB4 have a better (longer) name?
And what does the RB mean?

Richard Burns 4 (ever)? lol, think about.

RB4 GTR = RBR = Richard Burns Rally

Hmmm. Interesting thought...

4 is for 4wd but RB is just random

kinda like FXO, the F is for fwd

XRT, R for rwd
etc.

i'll take some whacks as to what it can stand for; rally based 4wd
..ya thats all i got lol

Actually it was "RainBow 4 You" originally, but they had to cut the U because of the 3-letter names we had back then