I feel that the BJ4we set the standards in 4wd ep buggies...the saddle pack layout with the center motor postition..if you look carefully at the Yokomo Mr4bx..it looks like a belt drive version of the BJ4we..just like onroad tourers and 1/8 gp buggies, future 4wd ep buggies are gonna look like each other but whatever it is..it's good to have different companies making 4wd buggies...