In what is probably old news to Prius owners, but was interesting to me, the Prius is extremely popular, especially the Prime. Prius Line Outsells Every Affordable BEV For 2021 - Bolt and Leaf Combined | Torque News
2021 hasn't been a representative year for the car market, with part shortages and supply line issues. It's a bragging point for the Prius, but not really good news for it. Last years sales for the Prius family were just a third to almost a quarter of past annual figures.
What models aren't selling every one that is built at this time? Besides the ones being built, but can't be sold because they need lacking parts.
even in a normal year, the fact probably holds true. unfortunately, it is a shrinking market overall.