Halliwell Jones BMW - ALPINA D4 BiTurbo for Sale. - YouTube
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Alpina B4 - Wikipedia
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Alpina BMW D4 Bi-Turbo Convertible (2018) - pictures, information & specs
Drawing I did of a BMW Alpina D4, done using marker pens and pencil crayons on bleedproof marker paper. Altogether, this took about 8 hours to draw :-) : r/BMW