This is going to fail.
Why?
California’s economy, as a percentage of worldwide auto sales, is going to shrink substantially in the next decade. To the point it will be selling less cars than any two coastal Chinese provinces. On top of that, the cars in California will be the most expensive in the world for base models, but with a working class population with some of the lowest after tax take home income in the world.
The “West” has reached peak car use, http://en.wikipedia.org/wiki/Peak_car
the “East” will be the deciding force behind technology mandates in low end cars of the future.
Also, the UN through a program called WP29 is supposed to set auto harmonization standards going forward. If California exceeds the standards it’s unlikely manufacturers will bow to California’s whims.
http://www.unece.org/fileadmin/DAM/trans/doc/2007/wp29/WP29-143-01e.pdf