"...have not been crash-tested in their modified form." concerns me a little bit for an ever day car loaded with extra batteries it wasn't designed for. Personal injury aside if one of these conversion is done badly and then has a bad accident. The PR could be detrimental to the PHEV movement. Because the News never leads with "Idiot modified car incorrectly lead to death..." they would lead with "PHEV fries childern in back seat...".

Just a thought.