I got a sidecar rig last year mainly to allow my dogs to come along with me for rides. Problem is the two Golden Retrievers will not both fit into my Velorex 562 sidecar body at the same time. Here's a recent shot with the larger male (Roscoe), who weighs around 80 pounds: It's quickly became obvious that my 60-pound female Goldie (Bailey) isn't going to fit at the same time. So I've been trying to come up with a plan for a new sidecar body that I can switch out depending on whether riding people or canines. After seeing this rig on another thread I thought the basic design could work for my rig: I'm probably going to do with a fiberglass-covered wooden substructure instead of the sheet metal of the one above. I'm planning to put a hinged door between the front of the car and sidecar wheel and a waterproof hinged trunk behind the doggie compartment. Anyway, this is an initial concept; nothing set in stone. I'm posting here hoping that some inmates with experience of this kind can offer suggestions that might help prevent me from making obvious mistakes. Thanks in advance for any suggestions/comments.