As far as i know it shares the same design as some of Mugens parts...like diffs for example.
http://www.imodel.fr/1401_1-214-Tout-Terrain-1-8eme.im
It's a new buggy but with good support.
It also shares some parts with Caster buggy(which is said to look like Mugen-has PBS up front as well) ...probably the same factory but different design.