'up to 320km' is like Hyundai saying that the Elantra's fuel economy is 4.9L/100km...
Oh, you want your heater on? Oh, it's winter? Oh, you are driving in the city? Yeah, sorry dude...it's only going to get you about 180-200km in those conditions.
True of all EVs, but I don't think the Bolt's longer range makes it worth the additional cost over the Leaf, etc. It is valuable, yes, but then you also have to consider the entire car (including its plastics and other compromises). This is still an economy car...what may be a $50,000 economy car by everyone's estimates here...