I currently have a B4 and like it. But I do like the look of the RB5.
What I like from a car is it to generate plenty of drive, my favourite 2wd is the Losi BK2. Ive also liked the B3 more so than the B4. I am running the B4 with 4 degree of Anti-squat and it seems to suit me like this.
But I just fancy a change, and wonderring, who can persuade me either way...

... do I, or don't I.
Chris