I’m just making things up so please read the answer and tell me if it makes sense. I hope this helps
There are many ways the article of clothing on a car can be considered art, the way the article is put and what it symbolises for example a clean shirt that came loose from the hanging line on your neighbours yard could end up on the windshield of the car after a storm or a windy day. You could tell a story similar to the example I gave you and the also depending on the article of clothes itself could have its own backstory