I’m on a Stellplatz in Germany, big flat concrete car park with no shade. An Italian motorhome arrived about 12.30, parked up, left his engine running. We went out at 1.30, engine still running. Just got back 2.5 hours later. Engine still running, fan going like crazy, all doors and windows closed, blinds down, big pool of water under it. I reckon he has air con in the cab but not in the back so has to run the engine to keep it in. Bloody expensive way to keep cool and he’s obviously not a Greta fan!