I think it was 1993 (9-92) when they upgraded the interior a little bit. They used different leather and plastic. The shape remained same all the way up to 99. If the car was made before 9-92 that is the older stuff, after 9-92 then it is newer. I saw both, not much different. the leather feels softer and also the plastics are felt a little bit softer. But we talking about minor differences only ! The bigger change was the foldable rear seat in the interior. Suspension got a little harsher due to the more aggressive damping in the automatic versions (manual was same) and I think that is all