I was able to test drive the i-MiEV last week.
First off, I was surprised to even find out that I actually fit in the drivers seat! I'm 6'4" so that is saying something about it. The cabin (wind) noise seemed as loud as a gas car, much louder than a leaf. Overall it feels and looks econo-box but with a much higher sticker price.
I agree with others that for not much more money you get a lot more car going with a Nissan Leaf. However, if Mitsu lowers the price just a bit more, I think it could pick up a lot more younger folks that can't justify the leaf's price, but love ev's.
I also caught a i-MiEV fast charging at Mitsubishi's headquarters; the fans run during the charging to cool the pack. Rapid charge time was about 15 min from near empty to 80%.
Jeremy