The scaremongering of NCAP got rid of the 3rd row in most cars. 
I can see why too,the third row in my Discovery are forward facing but the headrest almost touches the tailgate glass,we very rarely use them because of this.
There's not a lot of room behind my 3rd row seats either, though it'd need to be a tall car to hit anyone 
My XC90 still has a fair bit of room between tailgate and rear 3rd row

. It does make me wince when I see rear headrests within 6 inches of the rear window on any car

. The Volvo is quite high at the rear too. Ultimately depends what hits you and at what speed.
My dad used to have the 404 estate with the 3rd row - didn't even have seatbelts in the front when he bought it. I remember going to a scrap yard with him to get a set of fixed belts out of a car to fit in it (front only) and we both couldn't figure out at first why we ended up covered in blood 'til we realised it wasn't ours..
