XPeng’s appropriately-named ‘XPILOT ASSIST 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 but not in the driver’s direct line of sight. The G9 monitors that the driver keeps their hands on the steering wheel, and ‘locks-out’ the assistance system if there are repeated warnings. The car’s driver monitoring system detects fatigue but not distraction. The system balances driver steering input with lane guidance, promoting co-operative driving.

The G9 combines map-based speed limit information with real time camera inputs to manage fixed, variable and temporary speed limit signs. The system also adapts for upcoming curves in the road but not for other road features such as junctions. The car responds to avoid or mitigate a collision in almost 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 XPeng has a lane change assist feature. In the case of an unresponsive driver, the car does not perform a controlled stop within its lane. However, if the radar or camera is blocked, the G9 provides a timely warning and prevents system activation.

‘XPILOT ASSIST’, as fitted to the XPeng G9, balances a good level of Vehicle Assistance with a similar level of Driver Engagement. Combined with a reasonable level of safety back-up, the system, overall, offers Good highway assistance.