If the Volt were to get an
If the Volt were to get an Atkinson cycle gas engine rather than the non-turbo Chevy Cruze OTTO cycle engine, the Volt would get better extended-range MPG.
We might see this in the 2014 Volt. Probably low to mid 40s, slightly lower than the C-max because the Volt is heavier than the C-max Energi. The Prius is lighter than the C-max Energi.