I used a clay bar on my dad's old convertible a few years ago.
The system took all weekend to do (remove old wax build-up, clay bar the car, hand polish the car to get swirls, etc... out and then apply a nice new topcoat of wax) but the results were outstanding.
I thought I had a photo of the car at the office, but I don't.
Definitely worth the effort in my books.
Doug
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