> "We specifically advise against its use at high speeds on undivided roads" You don't have to advise; you could mandate. The car knows how fast it's going and

> "We specifically advise against its use at high speeds on undivided roads" You don't have to advise; you could mandate. The car knows how fast it's going and where it is, and with a little help from its Internet connection, can know when it's on an undivided road.