Person Driving (IMAGE) Virginia Tech Caption Many newer cars feature integrated hands-free interfaces for phone calls, navigational use, and other tasks, allowing drivers to keep both hands on the wheel and stay focused on driving. Credit Virginia Tech Transportation Institute Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.