Thanks for playing! The third is definitely the least polished, and unlike the others, you inherently just have to fail a few times before you get it right.
Given your score of 814, what actually happened for you is you discovered the little easter egg: turning the wheel all the way lets you make a U-turn instead of just a left turn. And though the U-turn is in a way harder to get without fouling, it ends up giving far fewer points because you’re closer to the correct lane (which is in part how the score is calculated). In hindsight, I could have added some visual text or indicator that helped clarify that you found something hidden.