Higher cost for electric vehicles - wonder how many politicians have stock in Chinese mining or battery companies? Being unaffordable for many, more money will have to be spent on public transportation - with all the opportunity for profit to a select few which that implies. Plus, with all the added electronics, don't be surprised if these will be "smart" vehicles that cali.gov can disable remotely for "traffic management" or other issues. Driving out to off road or rural or wilderness areas - where you're hard to monitor? Are you kidding? And with the CA grid inadequate, picture plenty of restrictions on charging. CA politicians clearly want people to stay close to home. This mandate goes a lot farther than just "cleaner air."
It won't surprise me if CA tries again (as they did during the Joseph "Gray" Davis governorship) to try and get states as far away as Indiana to reconfigure their grids to feed more juice into California.
I've come to the conclusion that lefty politicians have seen and read a lot of dystopian movies and books (The Hunger Games, Soylent Green, 1984, etc.) and have come to regard them as a blueprint for the future rather than as a warning against what might happen.