FWIW, I ran across this where there is a bit of a reveal on the interior. @1:56 and going forward you can see the dash layout and the center console an part of the front seat.
It looks okay to my eye.
Wonder how the Germans calculate 85%? They sold the idea that the production car would be 85% of what we saw in the concept. Just a quick look and I see the hood, grille, roof and front fascia are different. During one of the drive videos the front and rear seating interior as well as the door panels appear to be changed also.
Not saying the i4 is a bad car, but looking at the concept and being told we will get 85% of what we see.......and then seeing what we get.....sure looks like more than a 15% change to me.