Underside of car: body color or black?

[Musclerodz]

I plan to drive my Camaro when fiinished so I know the obvious choice would be black for sanitary reasons. I would prefer to paint it body color for detail and contrast. I know rock chips would so more as well. I thought I read here somewhere about a 3M clearcoat treatment to help prevent damage. Does anyone else remember it being mentioned in a thread? What are your opinions on this issue if you had the choice. Thanks.

Mike