If Tesla begins mass producing batteries to support the growing surge of electric car development, energy alternatives will be even more accessible to those who have chosen a greener form of transportation. The easier the upkeep of these vehicles, the more enticing they will prove to be. As more and more drivers switch to greener options, the auto industry will have to adapt in order to survive.
Yes, the business world is a copycat world. No business wants to be out of the loop on the chance to be innovative. Innovation is the linchpin of business and there is always competition. The history of business shows that once one company tries something new, every other company wants to do something similar or bigger. Electric vehicles are the future and no company wants to be left out of a big money making opportunity.
I think other businesses will start following Tesla and make all electric cars. Oil will eventually run out and companies will have to find some other sources. At this point, the most feasible energy source besides gas is electric. Also, Tesla has proved that all electric car can be mass produced and other companies will start imitating that as well.
Without doubt when Tesla's newest battery plant comes online other companies will make similar investments it electric vehicle (EV) battery technology. Otherwise they will be conceding the majority of the growing EV to Tesla without competition. Tesla has already put a viable EV on the road and is driving the cost of ownership down to where it has become a mass market vehicle.