The Prius was the #1 seller in CA for years. I think the Model 3 is #1 sedan and Model Y is #1 SUV.
The BMW 3 Series has been a perennial best seller here forever. When I was in HS Manfred Mueller, our neighbor, was the #1 BMW salesman in the US year after year. A wonderful German native, he was a really tough, but friendly man. He played on a big soccer team and we used to listen to his German music FM radio show Sunday mornings. Once I asked him if he could help me get a Porsche; he said, "We'll kick their ...." Like I could afford the car anyways. His son Peter is a Volvo mechanic.