Your first link comes from Tesla themselves, and the second smells strongly AI generated. If I search for the "best selling car 2026" and don't lead the search engine by feeding it "tesla model y", I see none of those results.
https://www.goodcarbadcar.net/2026-us-auto-sales-figures-by-...
https://www.best-selling-cars.com/usa/2026-q3-usa-top-10-bes...
When I google "best selling car 2026" my results show Tesla Model Y. I suspect maybe google is playing a bit of the "confirmation bias results" game for the both of us based on our past search history.