I went with a place where dealers use and they stick with dealers' standard. I can "smell"
that the rear bench seat is not leather except the middle inserts (that because I asked for perferation on the middle inserts and they did call me back to complain that I wasn't supposed to get that). If I didn't ask for perferation, it probably would have been all vinyl. The front seats are all leather and of course, all the seat backs are all vinyl.
A magazine said the rear seats are matching vinyl and it's hard to tell and I tend to believe them.
Smelling it can easily tell.