wow kids, lets not get our heart rates up. I would assume that (and I have not actually seen a real unmarked FBI car, though I have seen other federal agencies) most of these cars are sparsely lit. You have to remember, these aren't patrol vehicles and rarely respond code 3, so there is no need for an impressive light setup. In Boston, the detective cars (until around last year, and many are still like this) only had a blue light above the rear view mirror, they didn't even have wig wags or flashing tail lights.