I think WayOutWest makes a fantastic point about consumables. GM was a factor in the failure of their own product because they realized they would have to drastically change their business model if the Electric Car was aggressively marketed and proved successful. A former top-level marketer for GM so much as point-blank said there came a time when he was persuaded not to push the product anymore. Why? Four words.
California Air Resources Board. GM begrudgingly took on the projects of the EV-1 because it all of a sudden became THE LAW in California. As soon as the multitude of special interests (automobile industry included!) lobbied the CARB enough for them to overturn the Minimum Percent Vehicles w/ Zero Emission Law, the EV-1 disappeared.
The Electric Car was something the US Consumer didn't understand, and to this day don't, as evidenced by:
Is it possible that the technology just couldn't deliver?
People forget that some areas wouldn't be able to handle 10s of thousands of electric cars plugging into their grid.
Most times that is what marketing does, make people comfortable, make people understand the benefit. It would be interesting to delve into GM financial archives and compare what their initial marketing budget and actual expenditure was for the EV-1 and what it was for oh, say the GMC Yukon/Denali.