I keep my 964 in a parking garage space under a nearby condo building. The condo garages tend to be places where a lot of dust and dirt are circulated and can build up on peoples' cars. To keep that from happening to my car, I use an indoor car cover. I hate to put the cover on over a wet, dirty car, so, I try to drive it nice weather and wash it regularly. When we retire and move into our house (with garage
), I can be more sporty about what weather I drive in.