"The XC90 also features advanced pedestrian protection functionality that independent safety regulators have yet to include in their testing protocols, demonstrating once again how the Swedish carmaker continues to dominate and innovate in the field of car safety."
And let's not forget run-off-road protection, which is hardly on the NCAP, NHTSA, IIHS radar screen. Half of all Americans killed in automotive accidents die in run-off-road accidents, yet only tiny little Volvo is taking that kind of accident seriously. Volvo is so far ahead of the regulators and the giant car companies in safety.
From the Euroncap report: "In the original side pole test and to a lesser extent in the side barrier test, the side curtain airbag failed to deploy to its full extent at its rearmost edge. This would have resulted in protection for those in the optional third row seats that was less than Volvo had intended. Volvo investigated the cause and have implemented into production a modified trim panel which allows the airbag to deploy as intended."
There you have the answer of how the problem with the rear trim panel was discovered....