Not sure it is possible
If I remember there is "hump" between the rear seat and the back cargo/ 3rd seat area.
I moved my front seat back with my rail extending jig and even with the seat almost all the way back, my daughters friend (who is about 5'6" - 5'10") fit behind me. Of course, if he really stretched out his legs I could feel him pushing a little into the back of my seat, but I figure "hey unless there is 3 people sitting back there, it isnt that big of a deal for me to be comfy"
