Yep, it's just harder for non-analytical types to understand since it's really an inverse. People have trouble understanding when a higher number is actually a smaller amount of usage.
Using the Canadian version of L/100kM (or whatever function they use) is actually easier for most people to understand. Gallons per 100 miles would be easier for most people.
This morning's gas prices in Hamden, CT (New Haven)
$3.65 Regular (Cash) @ Gulf
$3.65 Regular (Cash) @ Citgo
Gulf is the usual price leader but since last week the Citgo station's prices have gotten very aggressive with a substantial advantage for Mid-Grade and Premium.
But here lies the rub, MPG is a terrible way of measuring fuel economy because it doesn't linearly scale
http://www.mpgillusion.com/p/what-is-mpg-illusion.html
The difference is that the Volt's ICE was also tied into the driveline, so it wasn't just a generator, which means it had to work harder at highway speeds, not just spend more time running.
Not sure if this is a real thing or not but this little generator in a trailer captures the idea of an EREV in my mind. I get ICE, HEV, PHEV and BEVs but not so much for the EREV.
Let's see. Ford will soon offer buyers the choice between ICE's, conventional hybrids, PHEV's, EREV's and full EV's. Something for everyone. What a novel idea, give the customer a choice and let them decide.