Comment Actually, Meta-Hybrid! (volt is not a EV) (Score 1) 301
It's a hybrid. Unfortunately hybrid is very unambiguous as well.
To be precise, the Chevy Volt was originally a Series Hybrid that added a capability to add about 15% of total power output through a direct mechanical connection, because this turned out to be more efficient. So it's a combination between series hybrid and parallel hybrid which makes it a kind of hybrid of hybrids -- a meta-hybrid!
(The Volt could probably run just fine as a series hybrid, with most of its range, power, and efficiency if the direct mechanical linkage were disabled. In contrast, a Prius can run only on electric motors but with a pretty piddling range.)