Note that this 'option' has never actually been available for purchase and relies heavily on projected future cost reductions. The battery replacement price as

Note that this 'option' has never actually been available for purchase and relies heavily on projected future cost reductions. The battery replacement price as of December 2013 is $44,564 for the 85 kWh battery and $37,102 for the 60 kWh battery. http://www.greencarreports.com/news/1089183_life-with-tesla-model-s-battery-upgrade-from-60-kwh-to-85-kwh/page-3 http://www.greencarreports.com/news/1089183_life-with-tesla-...