I did the exact same thing. Tried the Toyota due some suggestions here that it might be easier for us mere mortals and then watched the replay of the top Toyota on the board (thankfully at least one alien took it). Memorized apex speeds and gear choices and then got closer and closer pretty quickly. Had a few runs where I invalidated gold laps by a hair and then finally managed this. Super happy to have golded one of my personal thought to be impossible high down force combos.
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