To the best of my knowledge, the WH1 code started in 84 as designating the black and grey "Designer's Series" car. It had the GN's back spoiler as well. In 86 the Designers's series offered more color combos. I've seen Blue/Dk. Blue, Burgandy/ Grey and Silver/Grey. I'm sure there's more odd color combos out there. They're truly unique cars and not many left either.