The Cincinnati Auto Expo is known for its display of luxury vehicles, but you won't need to test drive anything luxurious to get a taste of the latest in semi-autonomous features. Semi-autonomous features such as automatic cruise control, rear cameras and lane changing technology – previously reserved for luxury line automobiles – have become mainstream in a matter of about five years, according to Charlie Howard, executive vice president of Greater Cincinnati Automobile Dealers Association. Howard said the industry is inching towards autonomous vehicles, or self-driving cars, feature by feature. "What you're just seeing more and more and more is that technology, you know, trickling through the various vehicles at all different price points," he said. Some of the features trigger your seat or steering wheel to vibrate when you back up too close to an obstacle, or when your car begins to veer outside of its lane.