Triumph Stag Poster Style Tail Fin Sedan on Salt Flats

retro futurism muscle car, black bodywork, aerial camera, desert salt flats, cinematic poster, generic unbranded design inspired by the era, no logos or visible badges, highly detailed reflections, dramatic cinematic lighting, ultra-realistic photographic look. No manufacturer logos, no trademarked badges, no real brand names, no copyrighted livery, no celebrity drivers. Generic period-correct design only. Specifically: tail fin sedan. Target search intent (rendered visually, no on-image text): "triumph stag poster" (en).