by
Lasing
May 06, 2010
To your comment on the Volt. http://jalopnik.com/5054642 "So, after some portion of the initial 40 miles of all-electric driving depletes the battery, the engine will be used to "sustain charge" while powering the electric drive directly — and not to charge up the battery."
"The reason it does that is because we want you to arrive with the batteries 'empty,' filling up on grid power costs about 1/6th of what it does with gas."