I know that they were still being sold through to the mid seventies, but wasn't the E Type Jag really of the 1960's, think of Patrick McNee, Bond, Rolling Stones, Beetles, Twiggy, Mary Quant, Brigitte Bardot, etc etc. I know the roots of the APT-E and HST are also rooted in that earlier era.
Nevertheless, I do agree it was a golden age of British World class leading design from the UK.