I just did a week long 7 seat model x rental for a family vacation where my parents came with us. I was dissappointed that the x middle seat did not have the latch system for a car seat. My main question is, does the second row in a five seat configuration have more room to move back than the 7 seat configuration? While I drove the passengers in the back felt it was somewhat cramped, and my son who is 4 in a front facing car seat did not have much space for his legs. We did not make much use of the two back seats at all.