No, my car didn't have any of those issues after a week, but I'm sure that if, during that week, there had been a windy storm blowing branches and stuff around, or I had gone to a busy parking lot with carts careeming around, or I had done laundry and put my laundry basket on the trunk and dragged it off carelessly, it would have.
Just like in the first week of owning our iPhone 5's, if we carefully avoided keys, coins, Alan Alda, hard surfaces of tables, etc. that they'd be much nicer looking at the week's end.
The whole debate, and it's sad that there is one, comes down to whether or not one can properly put into context what this device is, what it's made of, the decision they made to purchase it, and the proper expectations one should have moving forward.
I can't reasonably agree, in any way whatsoever, with any one individual who expects this device to not succumb to scratching, denting, and scuffing from coming into contact with things that scratch, dent, and scuff it.
There is an obvious, somewhat unspoken, but real sense that a majority of people feel that this phone should somehow defy the laws of physics, matter and the general universe we agree we live in, just because it was made by Apple and is called "iPhone."
If we take off our Apple hats, and put on our human-being-living-in-the-21st-century hats, we can all easily agree that this is a thing, made of materials, and suffers damage and cosmetic markings just like anything else made of similar materials.