We recently met someone with a new Volt and he said the backseat is roomier than the older models, and I think he said 3 people can fit in back now (as opposed to 2 peole in older models). Visibility is not great on older model, but has a nice ride, feels solid. Also the new model's console/center stack design is much improved.
In colder weather you will get less than 53 range. http://insideevs.com/gm-discusses-chevy-volt-13-mile-range-drop-in-frigid-temps/ We have a 2013 but wish we leased it, Tesla seems to be one of the few that retains valuehttp://images.hgmsites.net/lrg/value-retention-for-used-plug-in-electric-vehicles-after-1-year-national-auto-dealers-association_100513754_l.jpg