Dieter Zetsche.

“I don’t know if there’s one tipping point after which in two years all internal combustion engines will be replaced in new-car sales by electric cars.”

According to Daimler CEO Dieter Zetsche, batteries are key to the future of electric cars. Once EVs can go around 310 miles on one charge, they become competitive. Though Zetsche say, there is no “magic number” to trigger EV uptake.
autonews.com