Shiny Car Wash is a service of automatic car washes offered at Gas Stations in Empire Bay. When you begin a wash, you will watch an animation showing the car enter, get washed and then exit. However if the vehicle you're driving is a convertible, you will skip the wash process and just see the clean car exiting the wash bay. The prices are .05 cents in the 1940s era and .03 cents in the 1950s.
There is a bug where upon exiting the car wash your vehicle may glitch, shake violently and then explode into pieces. This doesn’t harm the player, but you may be stuck in the car unable to exit or drive off. Quitting and reloading is your only option.