1970's and 1980's for me.
BMW were massively focussed on competing in motorsport and the road cars such as 2002Tii, 2002 Turbo, E3 3.0Si etc., E9 CSL's, E21 323i, E12 & E28 % Series, M1, E30 M3 etc., & M635SCi, were brilliant.........
and they weren't building fucking diesel engined rep mobiles and SUV rubbish.....
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2017 X5 4.0dSE ~ Atlas Cedar:Ind.Amaro Brown Merino&Piano Blk, Sport Auto, DHP, Comfort seats, Cold weather pack, HK audio, Electric towbar, Sun protection glass.