WE’VE GOT YOU COVERED
A lot of folk like to keep their cars under covers, even ones that live in climate-controlled garages. Fair enough. While it’s obvious that you shouldn’t cover a wet car, I also recommend that you don’t cover a car at all until it’s cooled down from a gallop, even if it seems bone dry. For a start, you don’t want the cover touching anything hot around the engine or tailpipe, but you might also find that there could be a tiny bit of coolant evaporation (especially on older cars without sealed cooling systems) taking place until the car has returned to room temperature.