Tesla Model S

Perhaps the best-known semi-autonomous vehicle sold today is the Tesla Model S. The company’s Autopilot technology has received as much attention for its well-publicized failures as it has for its cutting-edge capabilities. The Enhanced Autopilot in the Model S uses four cameras and 12 ultrasonic sensors to “see” what’s happening around the car.

With Enhanced Autopilot, the Model S can center itself within its lane, automatically change lanes when directed, keep pace with traffic, transition from one freeway to another, and transition from a freeway to surface streets. When you arrive at your destination, the car can park itself.

Pushing the envelope even further, Tesla is working on a Full Self-Driving Capability package for the Model S. It is subject to further testing and regulatory approval before it can be released. However, the package will allow you to enter an address in the navigation system, or let the car see your upcoming appointments, and it will drive you to your destination with little or no driver intervention.