The battery capacity is increasing by only 7.6% (from 17.1 KWh to 18.4 KWh) but they are claiming an increase electric only mode range of 51% (35 miles to 53 mlles.) I wonder where all the extra range is coming from.<p>My Leaf gets a claimed 80-90 mile range on its 24 KWh battery, so proportionally the 53 miles on 18.4 would make sense, but remember the Volt is carrying around an ICE and all its trappings (it foregoes the drivetrain for the ICE, but it still needs lubrication, cooling, intake, exhaust, etc.) so the volt weighs about 300 lbs more than the Leaf (which is ~10%), and that&#x27;s going to have an efficiency cost.<p>Also, I should point out the leaf has had a 25% battery capacity increase in the new model, which should result in a direct 25% range increase since the new battery takes up the exact same space and weight as the old one.