Kia’s appropriately-named ‘Highway Driving Assist 2’ accurately portrays the system functionality. The promotional material and the handbook correctly indicate the limitations of the system capabilities. System status information is clearly displayed in the driver’s direct line of sight by a head-up display. The EV3 monitors that the driver keeps their hands on the steering wheel, but does not ‘lockout’ the assistance system if there are repeated warnings. The car’s direct driver monitoring system detects fatigue and several types of distraction. The system balances driver steering input with lane guidance, promoting co-operative driving.

The EV3 combines map-based speed limit information with real time camera inputs to manage fixed, variable and temporary speed limit signs. However, the system does not adapt speed for upcoming road features such as curves and junctions. The car responds to avoid or mitigate a collision in all of the test scenarios for automatic cruise control. The driver is supported through the S-Bend, staying within the lane at all test speeds. The Kia has a lane change assist feature. In the case of an unresponsive driver, the car performs a controlled stop within its lane. If the radar or camera is blocked, the EV3 provides a timely warning and prevents system activation.

‘Highway Driving Assist 2’, as fitted to the Kia EV3, balances a high level of Vehicle Assistance with a similar level of Driver Engagement. Combined with excellent safety back-up, the system, overall, offers Very Good highway assistance.