install plastic film on the body work behind the front and rear wheel wells (Stone-X or Ventureshield, have not decided which yet), to go along with the front end wrap, mirror caps, door handle wells and top surface of the rear bumper.

I did that on both of my M3s and it works wonders for stone chips on the hood/fenders, road rash on the rockers and lower front body work. Not cheap, but cheaper than repainting and I avoid having to do paint touch-ups every time I find a new chip or paint wearing off when I wash n wax.

Craig