Is it articulated?? I've been pondering this for a long time now and can't figure it out. I don't see how it can't be with 3 trucks far apart like that, yet I've never seen it "bend". An idea for the RGS if it was made to bend: use a fifth wheel behind the bus part to facilitate the use of different "trailers" such as box, tank, or more passenger. I don't know how much that engine could handle, but they still could have done that to cut more costs...