New Chevy Volt looks nice but how are they still selling the old one?

[youtube=https://www.youtube.com/watch?v=WsIxo4lSrsY]
Every time I hear about the 2016 Volt, I can’t help but think how much nicer it is than the current one across a lot of different areas (from the Chicago Motor show above). The problem is that we’re quite a long time from the new one being on sale so Chevy has to sell the “old one” which is going to be a hard slog.