As an aside it's a shame though I suppose inevitable how few 9ks you now see on the road. Such robust looking things (and admired for that on Top Gear as I recall, when dropped upside down from a crane).
That was a 900 dropped on the roof, not a 9000 - not seen many images of safety tests on the 9K.
I've commented on the SOC page on FB when you have the OG vs NG 9-3 debates, OG fans complaining about the GM content of the newer cars and asked when was the last time you saw a Vectra? and when was the last time you saw a 9-3SS S-W or vert? Last Vectra I saw was actually a 'B' (95-02)...
Back to the safety test, images taken in the 60s of the tests on 99s show how intact the car was after being dropped from a height. The roof of the 99 holds better than the 900s; and in actual fact the beams in the A-pillars had to be shortened and weakened to satisfy US requirements, one of which was to allow the front doors to open after impact.