Technology wise it is not something entirely new. Just in their particular case, it worked very well for the cost, ... if we are to believe them. Even if the e

Technology wise it is not something entirely new. Just in their particular case, it worked very well for the cost, ... if we are to believe them. Even if the entire battery will got to 50% of its current cost, Teslas will still be quite expensive cars, which have many expensive things other than the battery: Aluminum body for example.