The passenger compartment of the SEALION 7 remained stable in the frontal offset test. Dummy numbers showed good protection of the knees and femurs of both the driver and passenger. BYD showed that a similar level of protection would be provided to occupants of different sizes and to those sitting in different positions.   Analysis of the deceleration of the impact trolley during the test, and analysis of the deformable barrier after the test, revealed that the SEALION 7 would be a moderately benign impact partner in a frontal collision. In the full-width rigid barrier test, protection of the rear passenger’s chest was rated as weak, based on dummy readings of compression. However, protection was good for all critical body areas of the driver.  In both the side barrier test and the more severe side pole impact, protection of all critical body areas was good and the car scored maximum points in this part of the assessment. Control of excursion (the extent to which a body is thrown to the other side of the vehicle when it is hit from the far side) was found to be adequate. The centre airbag, a countermeasure to mitigate against occupant-to-occupant injuries in side impacts, performed well in Euro NCAP's test with good protection of the head for both front seat occupants. Tests on the front seats and head restraints demonstrated good protection against whiplash injuries in the event of a rear-end collision.  A geometric analysis of the rear seats also indicated good whiplash protection.   The SEALION 7 has an advanced eCall system which alerts the emergency services in the event of a crash.  The car also has a system which applies the brakes after an impact, to avoid secondary collisions.

In both the frontal offset and side barrier tests, protection of all critical part of the body was good for both the 10-year and 6-year dummies, and the SEALION 7 scored maximum points in this part of the assessment.  The front passenger airbag can be disabled to allow a rearward-facing child restraint to be used in that seating position.  Clear information is provided to the driver regarding the status of the airbag and the system was rewarded.  All of the restraint types for the which the car is designed could be properly installed and accommodated in the car.  The SEALION 7 is equipped with a direct 'child presence detection' system, which issues a warning when it detects that a child or infant has been left in the car.

Protection of the head of a struck pedestrian or cyclist was largely adequate, with poor results recorded on the stiff windscreen pillars and at the base.  Protection of the pelvis was predominantly good, while that of the femur and of the knee and tibia was more mixed.  The autonomous emergency braking (AEB) system of the SEALION 7 can respond to vulnerable road users as well as to other vehicles.  The system’s response to pedestrians was good, but protection of those to the rear of the car was marginal. The system’s performance in tests of its reaction to cyclists was also good but protection against ‘dooring’, where a door is suddenly opened in the path of a cyclist approaching from behind, was marginal.  Performance of the AEB system was good in tests of its response to motorcyclists, with maximum points being scored.

In tests of its response to other vehicles, the autonomous emergency braking system performed well.  A lane support system gently corrects the steering if the car is drifting out of lane and it can also intervene more aggressively in some other, more critical, situations.  The speed assistance system can detect the local speed limit and presents the information to the driver, allowing the speed limiter to be set appropriately.  A seat belt reminder is standard for all seating positions.  The car has a direct driver status monitoring system as standard, detecting driver fatigue and some forms of distraction.