Are they screwed into the factory spots?

If they are easy to get on and off then it would be good for those long trips or the ones that include some loose gravel. Much better than dealing with chips...

BTW - has anyone seen if dupli-color has a match to our colors? They show a gray for Chrysler but is it the Chrysler gray or the Mercedes gray? I don't see a color match code under the hood like other vechicles we are all bound to get a chip at some point and touch up paint from a dealer is never cheap.

-marc