Do you mean an automatic touchless carwash? Or one of those quarter washes? I would never take a car through any automatic carwash. I always hand wash my roadster and would never go through an automatic touchless carwash because even when I wash the car myself, it leaks a little between the drivers side window and the roof. I'd be afraid that all the uncontrolled pressure washers would make it leak worse. The car is small, doesn't take much to wash it by hand, especially if you have a dozen coats of polish on it! Dirt and bugs just slide off it.