You do not have to have a charging station. They will sell you a leaf without one. Also many people who got the charging station got them for free with some program or at least a nice tax rebate. The ones who didn't do it are converting their OEM power cord to accept a quicker charge like from a dryer outlet so no station even needed.as far as i know, if you buy the leaf you have to have a charging station installed at your house... i dont know how much that costs... and i think you can get upto 100 miles on a charge... as for the volt, im pretty sure it just plugs into a standard outlet... with only 30 or so miles on a charge... but you can run it on gas... my money is on the leaf! 30 miles couldnt even get me to work!
The mileage of the leaf will vary greatly. So it's hard to say the range. Nissan states from like 62-138 miles.
I like the leaf more then the volt because if I'm going electric I want to go electric. I don't want to do oil changes or any of the other stuff associated with a gas powered car, which the volt still is.
I like both cars and look forward to them making improvements and this technology trickling into other models.