Just thought i share my recent detailing work for a Audi A1. The owner got the car (2nd handed) from a car yard that has hologram swirl marks pretty much throughout the entire car. Very sad for such a relatively new car. So, i have being asked to fix it up for them.
Here's what it looked like after a 2 bucket method wash on the car (but before claying and buffing)
Spent about 5 hrs on the car and comes down to this. Swirl marks gone and returns a deeper black throughout
The end result's very pleasing for the owner