Tha paint on the hood, trunk and top of my 380 is very dull. The sides are still shiney. Other than a repaint, is there anything recommended that may bring my paint back a little? I had someone tell me "clay bars", but I have never used them. Can someone give me details?

Any other suggestions?
BTW - my car is silver. Here is a photo and as you can see, the paint is rather dull.

Thanks in advance.

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