Good website for info and help. Had a sidecar rig myself and helped to install many others. Not knowing much about your bike or intended use of rig...it'a little hard to suggest much at this time. BUT, I would tell you to get a "lightweight" car for this model bike as most cars (plus frame,mounting hardware) will weight in at about 100-140lbs. Just using the "sidecar frame" and having a flat wooden or expaned metal surface can be more useful...but it till depends on YOUR needs.