If you're as poor a driver as I am, the idea of things like vibrating seat belts and directional horn sounds to alert you to an accident sounds like a nice addition to any car. Looks like Oxford professors feel that these kinds of sensory signals will help improve our reaction time in those first few tenths of a second during an impending collision—which they believe is a critical time if you want to avoid an accident. They have obviously never been in a car with me. Oh, and in case you're interested, they've also come to the conclusion that peppermint smells will keep you more alert when driving. But then again, I bet a nice Dutch oven would do the trick as well, so that insight doesn't thrill me all that much.