[erk__]

There is a reason most big car makers have not been selling electric cars yet, it is not very profitable, they believe that around 2020 batteries are becoming cheap enough to sell them. And if those companies can produce more and cheaper cars than Tesla they are going to have a problem.

[ggm]

There are only four or five significant old school car manufacturers and India and China bought some technology and are ramping up. The complex non linear investment decisions they have to make are just that: complex. If Tata or somebody succeeds in stealing mindshare and then market share leaving their run until after 2020 could turn out to be as suicidal as investing in cocaine to make the Delorean