Apparently the next generation Nissan Leaf could provide up to 340 miles of range. Pretty significant. The next generation is due in 2018 which will be before the Model 3 comes out. The concept car that they previewed at the Tokyo Motor Show last November featured a 60kWh batter pack that they said would provide 310-340 miles of range. The only thing that's left to consider is if it'll be able to meet Nissan's price and durability targets.