I don't want to put anything on the car body yet--at least until I get a few dents and scratches and the new wears off.
You say that like an antenna is a bad thing.
This is an extension of your hamshack, a place you will spend hours of your time operating. Why not enhance the new car with a really nice antenna and a crispy new rig, custom installed in the dash?
There is nothing like the smell of new factory paint smoke as it curls up from a freshly drilled NMO hole. That's the best part of the "new car smell" for me. Do it right, do it once, it will look great and you will enjoy it for years.