We're lucky, there's a good carwash two blocks from our house, so we can walk it.
Here's how much we don't know about cars. After the big snowfall last week, we were digging out our car. A passer-by said, "Is that Volvo all-wheel drive?" The answer, quite sincere, was "I don't know." The guy looked away with disdain. And we know so little about cars that we don't know exactly why.