One out of every 10 new vehicles sold in the US last year was purchased in California. So it's no wonder automakers save some of their most important introductions for the Los Angeles Auto Show.

As usual, green cars are a focus in eco-conscious LA. Toyota is showing its emission-free hydrogen fuel-cell car, the Mirai, which goes on sale next year in the US and Europe. Honda has a fuel-cell concept car, the FCV, which is expected to go on sale in 2016, while Volkswagen is showing a fuel-cell version of its Golf wagon.

The new Audi e-tron Quattro concept car - featuring a rooftop solar panel -- is introduced during the Los Angeles Auto Show in Los Angeles, California November 18, 2015.[Photo/Agencies]