I actually think the hot weather testing results would be more helpful to discuss, not only because I live in Arizona , but because hot weather is typically where EVs have struggled. Last I heard, a class action lawsuit was forming among Arizona owners of Nissan Leaf vehicles, because their battery packs were losing substantial range (like 20% capacity within a year or two) because of degradation from the exceptionally hot weather. I believe the issue arose from the fact that the Leaf's battery is air-cooled, rather than water-cooled like the Volt, and this passive cooling was not enough during Arizona summer highs of 110 degrees. I'm interested to learn more about what GM engineers have planned for thermal management of the Bolt's battery pack.What I really wanted to read was how it handled in cold temperatures. Sure they touched on where they tested the Bolt but not what the results were.