"For an Equinox sized vehicle
"For an Equinox sized vehicle, the range extender couldn't be same half-peak-power configuration used in the Volt if it is to be capable of overcoming drag at freeway speeds."
Huh? The Volt's drivetrain draws about 16 kW at 65 mph on level pavement that's barely 20 horsepower.
That section is all nonsense and rock-smoking.