[massysett]

Don't car dealers often have an automatic wash on site? Unless these are little used-car lots?

[bluGill]

Some do, most do not. I used to make test equipment and so was at many of the dealers within 100 miles to test something so I saw a lot of dealers.

[bombcar]

One car wash per dealer would be even more dense than the current number of car washes. Dealers seem to be everywhere.

[kuchenbecker]

Depends on the dealer. But definitely not all.