Ditto on the Zymol. I use vintage, but the lesser versions are excellent as well. You'll never have to deal with dust, etc. again. Just massage into the paint with your bare hands, and wipe off with a microfiber. No rubbing, no buffing. More than just protecting, Zymol feeds the paint by replenishing essential oils that are lost due to sun, washing, etc. And the paint will look like it's dripping off the car.

Be sure to use HD Cleanse first. And resist the urge to eat it (it smells like a chocolate shake).

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08 W251 R350
97 W210 E320
91 W124 300E
86 W126 560SEL
85 W126 380SE Silver
85 W126 380SE Cranberry
79 W123 250
78 W123 280E
75 W114 280