First time in this section! Planning on fitting E70 seats into E53. I know what's involved and should have somebody helping to get it done.

I know on E53 we have 4.6 and 4.8 engine versions that came with comfort nappa seats, I.e. with articulating back.

Looking at some pictures of partouts for E70, I see some seats with articulating back, but leather seems regular, on 2010 3.0.

Then I saw different seats on 2012 X5M. They did not have articulating back, but leather seems higher quality and stitching was different.

Please educate me which versions of E70 had the best front seats package. I assume it would be nappy with articulating back and thigh support?