Mazda’s appropriately-named ‘Cruising & Traffic Support’ accurately portrays the system functionality. The promotional material and the handbook correctly indicate the limitations of the system capabilities. However, the quick-start guide does not mention these limitations and points are lost as a result. System status information is clearly displayed in the driver’s direct line of sight. The sensing of the driver’s hands on the steering wheel was judged not to be robust, and the CX-80 does not ‘lock-out’ the assistance system if there are repeated warnings. The car’s direct driver monitoring system detects fatigue and some types of distraction. The system balances driver steering input with lane guidance, promoting co-operative driving.

The CX-80 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, other than stop signs. The car responds to avoid or mitigate a collision in most 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 Mazda does not have 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 CX-80 provides a timely warning and prevents system activation.

‘Cruising & Traffic Support’, as fitted to the Mazda CX-80, performs well for Driver Engagement, slightly worse for Vehicle Assistance. Combined with a good level of Safety Back-Up, the system, overall, offers Good highway assistance.