I disagree, I've never seen a 911 interior I liked and the R8 is very corporate Audi/bland. Recent Ferrari dashboards have been nasty though, I always liked the simplicity and purity of the 355 design though.
As for quality of materials well the Germans have pretty much got that sewn up.
911 interiors have always been odd to my mind. As for the R8 it is nice but 80% of it is the same as my wife's TT.