Wireless and wired serial communications are invading today's vehicles and are "driving" the need for test. BroadR-Reach Ethernet for cars and MOST150 are two communications technologies moving into today's cars. As Keysight's Mark Wallace explained, "New entertainment systems will connect more devices by wireless technologies such as Bluetooth, and WiFi. The embedded cellular technologies are also playing more roles for eCall (car will automatically call an emergency center when a serious accident occurs). Services such as in-car hot spots that convert 3G/4G cellular signals into Wi-Fi, plus location-based advanced navigation services, are coming online."