A childhood belief about cars

Once, I was with my older cousin and my uncle and we were driving around in his car and then my uncle said we'd get a car wash. After we got the car wash (and we were still in the car) my cousin and uncle convinced me that the car wash we went to was one that changed the colour of your car and I firmly believed it. When we got out of the car, they told the colour was worn off and the car had gone back to its old colour and for many years all the way to almost high school, I believed that there were car washes where you could select a new temporary colour for your car and would always asked my confused dad if we could go to one.