The car business is a cauldron of change, but certain things remain consistent.

One of those things is Californians' appetite for Toyota Prius hybrids. The Prius range was the most popular vehicle line in the Golden State for 2013, the second year in a row it came out on top.

The term "vehicle line" is key here, because the total used to determine the top seller includes the combined sales of several models--the Prius Liftback, Prius C subcompact, Prius V wagon, and Prius Plug-In Hybrid--that make up what Toyota calls the "Prius family."

According to the California Auto Outlook Report, 69,728 cars with the Prius nameplate were sold in California last year.

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2014 Toyota Prius C

2014 Toyota Prius C

The company sold 234,228 Priuses throughout the U.S. last year, meaning that just under 30 percent of the line's sales were in that one state--which has just 12 percent of the country's population.

Toyota says it sold more Priuses than that total of all other hybrids sold in California, accounting for six of every ten new-hybrid sales in California in 2013.

And the quintessential hybrid takes the crown for two years running: The Prius family was also the most popular new-car line in California in 2012, with 61,893 sold.

The Prius' continued popularity in California isn't too surprising, given Californians' enthusiasm for green cars.

About 9.3 percent of cars on California roads feature some form of electrification, the Auto Outlook Report stated.

2014 Toyota Prius V

2014 Toyota Prius V

California has always been a law unto itself when it comes to hybrids, electric cars, and other green vehicles. Consumer interest is mirrored by supportive government policies, including granting plug-in hybrids and fully electric cars access to carpool lanes without passengers.

However, the Prius has managed to maintain its sales dominance over a growing number of competitors--including increasingly popular models from Ford--despite receiving very few significant changes for some time now.

A redesigned Prius Liftback is expected to be launched in 2015; it may be rated as high as 55 mpg on the EPA combined cycle.

For now, though, California buyers seem fairly content with the current model.

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