Gallery
This is what bat droppings does to car paint
Even polishing doesn't remove the damage fully. Paint protection is needed to prevent this as it resists very powerful Acids and Alkalines.
An example of washing cloth seats
Before and after paint restore
Headlight restore
multi stage Polishing
Headlight resore
Before and after of polish
Before and after polish and protection
These are called water spots - mostly they require polishing to remove them.
The red is iron being dissolved off the wheel