VW Beetle 5th Wheel RV Trailer
I don't know if this ever saw production, but in the mid 70s there was at least one VW Beetle RV. Most people just bought a Bus with a camper conversion, but if you wanted to be really cool and have a detachable, more spacious RV to go with your air cooled VW, you could get a fifth wheel trailer that mounted to the roof of the VW Beetle. Because it mounts to the roof, it looks super maneuverable, but who knows what it would be like on the highway. Luckily it's attached to a VW Beetle though, so you don't have to worry about high speeds.