EVs are sexy and expensive and it's starting to get complicated

California's push to ban gas-powered cars by 2035 is making travelers take another look at electric vehicles. Here's what they see.

Look both ways before you cross the street in Norway. 

You can't hear the traffic. Norway has the highest EV adoption rate in the world, with 64 percent of the new cars sold last year being electric. 

And, as I discovered on a visit to Bergen last week, EV traffic doesn't make the same loud noise as internal combustion engines. It's a barely audible whine.