What does floating the title mean? Is it never registering it in your own name and just letting the next guy do it?
In my state, Oregon, for example, the DMV has agents watching craigslist, facebook, autotrader, etc. who go test drive private party cars under cover and ask the question, "So, why are you selling?" where answering that question incorrectly (along the lines of, "oh I bought it to fix up and make a few bucks") will net you a several thousand dollar fine.