Most often times features are not new at all, they are just rediscovered or where not very popular at the time and make a comeback decades later.

Case in point, the Citroen DS

James May Talks about Citroen DS - YouTube

http://www.dailymotion.com/video/xh0yl9_citroen-ds-at-top-gear_auto

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1982 300GD Carmine Red (DB3535) Cabriolet Parting Out
1990 300SEL Smoke Silver (Parting out)
1991 350SDL Blackberry Metallic (481)

"The thing is Bob, its not that I'm lazy...its that I just don't care."