Do you have engine cleaner that cleans the engine

Yes they have engine degreaser

That is not true. Soap comes from the spray on the water with soap setting, the pre-wash setting has soap too and soap also comes from the brush too. Not sure about the engine degreaser but they do not have a tire/wheel cleaner. I just use the the pre-wash for the wheel and tires.

There's only one soap that's activated when you deposit coins, separately from rinse water. Basically soap comes from brush.