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Euro NCAP has released its 2024 round of highway assist gradings, rating the assisted driving capability of the highway assist systems on European cars against the new 2024 criteria for the same.

In 2024, Euro NCAP extended its driver monitoring requirements and introduced additional measures to improve speed assistance related to lane relevance, road features, and local hazards. Furthermore, Safety Backup scenarios have been expanded to include motorcyclist avoidance, alongside pedestrians and cyclists.

These gradings are separate from the 'Safety Assist' section of Euro NCAP's five-star safety ratings which are focussed on emergency crash avoidance.

• The BYD ATTO 3 has become the first ever car to receive Euro NCAP's lowest possible 'Not Recommended' in these tests, although it is probably worth noting that the criteria have changed for 2024.

Bringing up the rear, and ‘Not Recommended’ by Euro NCAP, is the BYD ATTO 3 with its Intelligent Adaptive Cruise Control. The speed assistance system did not interpret road signs correctly and scored only modestly in Assistance Competence. However, it was in Safety Backup where the car did not reach minimum standards, specifically the overall poor performance of ACC against stationary vehicles, and the lack of action taken in case of an unresponsive driver. In this critical scenario, the system effectively switches off steering support after a prolonged period of inactivity whilst maintaining speed control – leaving an unresponsive driver to his or her fate.

• The Volvo EC40 (still C40 Recharge in India) and VW ID.7 (not available in India) scored 'Good'.

The Volkswagen ID.7 and Volvo EC40 (previously the C40 Recharge) were given a ‘Good’ grading. Both cars performed well, although they lacked some of the more sophisticated features and robust performance of the BMW and the Mercedes-Benz.

• The top performers were the BMW i5 and latest Mercedes-Benz C-Class, scoring 'Very Good'.

Tested under these conditions, the Assisted Driving systems of two cars stood out, with exceptional levels of Assistance Competence and excellent Safety Backup. The BMW i5 and the Mercedes-Benz C-Class were considered ‘Very Good’, the systems of both providing robust speed and lateral control to take much of the driving load, while keeping the driver ‘in the loop’, to take back control if needed. For Safety Backup, the Mercedes scored particularly highly, the car moving to the hard shoulder and performing a controlled stop if the driver is unresponsive.

Euro NCAP assisted driving gradings

Press Release

Euro NCAP ADAS technical manager Adriano Palao said:

These evaluations provide consumers with critical insights into the Assisted Driving features available in today's vehicles. First, car buyers interested in this technology must be aware that whilst it enables a comfortable driving experience, it has flaws under certain conditions and may create new risks when misused – hence driver supervision and situational awareness must be ensured at all times while operating these systems. Now in 2024, the assessment has evolved, incorporating two main updates: specific requirements for Driver Monitoring, evaluating the effectiveness of the technology in detecting typical driver states associated with risk, such as system overreliance, prolonged distraction, and sudden onset, eventually leading to a vehicle response that may help prevent a crash. Then, the introduction of Vulnerable Road Users traveling ahead at a small offset in ACC Performance and Safety Backup scenarios ensures that ACC addresses accident types typical in interurban areas