EV (and PHEV) car sales as per cent of total global new car sales reached 1.7% in May. Notice that the slope of the line is increasing--the switch to EVs is accelerating.
US EV/PHEV sales have levelled off. I expect it's a case of reculer pour mieux sauter, as the market waits for the release of the US$35,000 Tesla 3 and the new extended range Nissan Leaf.
(Source of basic data Insideevs, OICA, and St Louis Fed; my seasonal adjustments and estimates; EV= electric vehicle; PHEV= plug-in hybrid electric vehicle)
Disclaimer. After nearly 40 years managing money for some of the largest life offices and investment managers in the world, I think I have something to offer. These days I'm retired, and I can't by law give you advice. While I do make mistakes, I try hard to do my analysis thoroughly, and to make sure my data are correct (old habits die hard!) Also, don't ask me why I called it "Volewica". It's too late, now.
BTW, clicking on most charts will produce the original-sized, i.e., bigger version.