HUH? do you have different interior in the EU, what is shown in this brochure is a hell of a improvement then the USA interiors.Some not so good CGI, infotainment looks bigger than it actually is.
For the interior. IMO they didn't improve materials by much if any. It was all about styling so that perceived interior quality would be better.
For years I've been saying that interior design of FCA US cars makes people think that they are worse than they really are.