I have already phone the volvo dealer and no they dont come out :( The only one that does is the middle one in the middle row i.e. the one with the built in booster cushion! I can't believe that a car like this wont take a standard 2/3 child seat. I think I may write a letter of complaint direct to Volvo. How hard could it have been to have designed the headrest rests in the rear 2 rows not to cause this problem. Surely given that they have a built in forward folding mechanisim they could have allowed a release option to allow the headrest to tilt back by about 10 degrees. This would have allowed a child seat to fit correctly!!!!