First off we are talking about the XXX. The XX buggy has long since been gone. The XXX-CR wins its share of races too. The two buggies are very competative with each other. Winning has more to do with the driver than the buggy. Just because certain drivers are winning with the B4 does not mean the B4 is superior to the CR. Just that those drivers are better. If you look at most races Losi places respectively and wins sometimes too.