American manufacturer Sidewinder has designed four caravan models that attach to the right side of a motorcycle like a sidecar. The flagship model, The Sonoran, measures 3.96 m long, 2.13 m wide and 2.13 m high, and weighs 612 kg. It includes a shower, sofa, beds, a toilet and an indoor kitchen with a sink, hob, fridge and hot water tank, and can accommodate up to four adults. To use such a caravan legally in Spain, it must be homologated as a substantial modification, requiring an engineer's technical project, a conformity report from the manufacturer or an accredited laboratory, an installer's certificate and a final works certificate, followed by an ITV inspection to record the modification on the vehicle's registration document.
