Burning question of the day - the way back

You know how, when we were kids, families drove around in station wagons instead of minivans? And how those station wagons had a third row seat that faced backwards, out the back window? What did you call that third row seat? (I guess it even applies to the minivans of today, now that I think about it. Though our third row seat is usually folded down or removed entirely, so as to better utilize the space to cram things like sleds or wagons or bags of mulch into our Sienna.)

In my family (and I think in my neck of the woods in general), we called that last row seat the way back (as in: I want to sit in the middle because I will get really car sick if I have to sit in the way back for the ride to Grandma's), but Hubby insists the proper term is the back back, and the debate has raged on for over 15 years now in our house. I wonder if this is a regional thing, like soda vs pop. (Side note: I refuse to refer to soda as "pop" even though I'm presently living in a part of the country that is weirdly, firmly entrenched in the pop camp. Drive about an hour east of here and it is 100% soda territory.) I wonder if there are other, completely different terms folks use out there in the great, big world. So, I'm putting it out to you, dear readers: What do you call the third row of seats? Way back, back back, or something completely different?