The interior of the W126 was changed for 1988-1991. They also got passengers side airbag, and I think the 560 started to get some sort of traction control. I hope the new S looks nice, the pictures I have seen don't look to promissing. Think Acura. It can't look to much worse then the new 7 series. At this rate Jag. will have the only luxury car that looks good. Unless you buy an older Bently.