A coworker of mine has a cargo bike from a company called Tern. I thought that is was the GSD but looking at their website it's different than the one he rides. Nevertheless, a neat feature is you can kick the bike backwards onto its own cargo rack, and the bike stands on its own vertically. He rides it to work and it fits in his comically small office; the footprint is about the same as a vertical filing cabinet. I'm told several of the newer cargo bikes have this feature.