Here are 2 links to the Tesla Motors press releases regarding their battery cell supply agreement with Panasonic: Tuesday, October 11, 2011: "Panasonic Enters into Supply Agreement with Tesla Motors to Supply Automotive-Grade Battery Cells". Link: http://www.teslamotors.com/about/press/releases/panasonic-enters-supply-agreement-tesla-motors-supply-automotivegrade-battery-c Wednesday, October 30, 2013: "PANASONIC AND TESLA REACH AGREEMENT TO EXPAND SUPPLY OF AUTOMOTIVE-GRADE BATTERY CELLS". Link: http://www.teslamotors.com/about/press/releases/panasonic-and-tesla-reach-agreement-expand-supply-automotivegrade-battery-cells As Tesla Motors starts selling the Tesla Model S (and as from 2015 also the Tesla Model X) in more and more countries/markets, and as the global demand (for S/X) will keep growing in the next few years, is it likely that the current battery cell supply agreement (which has been expanded in October 2013 up to 1.8B battery cells in 4 years) will again be expanded in October 2015 to an even higher level? And what would the quantity of battery cells (again over a period of 4 years) of that next even higher level probably be? How about delivery of a total of 6 billion battery cells to be gradually delivered in the years 2016/2017/2018/2019 (each year more than the year before)? Keep in mind that Tesla Motors will use the current (Generation 2) skateboard platform of the Tesla Model S to build more future models (besides the Tesla Model X). A pick-up truck to compete with the likes of the Ford F-150, and a new really fast sportscar to compete with the likes of the new Mercedes Benz S-Class Coupe. These two models are most likely to be announced and built in the next few years, in my opinion. If you have other idea's, then you should share them with us. Post your thoughts/idea's/expectations/guesses on this topic here in this thread.