This is false. Most car companies have been researching electric vehicles since the 60's or 70's when the first oil crises happened. And as for technology, Tesla is not actually ahead, in neither range nor charge up speed.
As an example, this is also a "Startup" thing. An electric bus, that gets better range (everything considered) and faster recharge times:
http://www.jaylenosgarage.com/video/proterra-ecoliner-electr...