With all respect, I can't
With all respect, I can't help but make a point of order on that Chevy Volt. Yes, it has an IC engine for range extending. However, the IC engine merely drives a generator which charges the battery. It never, ever directly drives the wheels; meaning, the Volt is still a 100% electrically propelled vehicle.
On the other hand, a full electric drives the wheels for 100 miles, but often gets its recharge from coal-powered utility plants or, at best, gas-fired utility plants. So, I do not view full EVs as somehow more green and righteous at this point in time, as many of these movie makers and auto journalists like to tout.