The exact future of Volt replacement batteries, and replacements for any of the plug ins is still up in the air. The technology will change a couple times before the OEM batteries wear out. Worse case scenario, you can not replace the battery when it wears out, and get the thirty to forty mpg on gas.
I'm not worried. With more Volts on the road all the time, battery development and production are assured. That said, nobody know exactly what lies 8 years down the road.
Personally, I think there is a huge upside going forward.
Last edited by Catbert; 02-27-2012 at 11:36 AM.