The data shows that while many of the top 20 cars are the same with minor differences there are some standouts. For instance, the Toyota Prius while being 6th in California is 56th in the nation and the Mercedes-Benz C is 16th while being 69th in the nation.

Rank in the Entire US California Rank in the Entire US United States
1 Honda Accord 1 Honda Accord
4 Honda Civic 2 Toyota Camry
2 Toyota Camry 3 Nissan Altima
7 Toyota Corolla 4 Honda Civic
3 Nissan Altima 5 Ford F150
-- Toyota Prius 6 Chevrolet Impala
5 Ford F150 7 Toyota Corolla
8 Chevrolet Silverado 8 Chevrolet Silverado
16 Nissan Sentra 9 Chevrolet Malibu
11 Ford Focus 10 Ford Explorer
18 Ford Mustang 11 Ford Focus
-- Honda Cr-V 12 Ford Taurus
10 Ford Explorer 13 Hyundai Sonata
-- Toyota Tacoma 14 Dodge Ram 1500
13 Hyundai Sonata 15 Jeep Grand Cherokee
-- Mercedes-Benz C 16 Nissan Sentra
-- Volkswagen Jetta 17 Ford Escape
9 Chevrolet Malibu 18 Ford Mustang
-- Lexus Es 19 Ford Fusion
20 Hyundai Elantra 20 Hyundai Elantra