I’ve dreamt about the Mercedes-Benz O309D as an RV before, and today’s underwent a full conversion from a postal van to camper van in the ’70s. It has some distinct pros and cons: On the plus side, it looks amazing in baby blue, is way cooler than a normal RV, and has the venerable Benz OM617 diesel found in the 300D, so parts are aplenty. On the other hand, it’s almost 50 years old with a 40 year-old RV conversion – meaning there’s plenty of work ahead – and the non-turbo diesel inline-5 has to use its ~80hp to haul a massive van up to its 50mph common-sense limit. My calculus adds it up to an overall positive because it runs, has a ton of potential, and putting in a fraction of what some people spend on RVs would make this a killer home away from home.