I disagree. This article ignores the fact that the Lead Acid batteries were replaced with Nickel Metal Hydride, which were, and still are, very good batteries. It wasn't antiquated technology that killed the EV1, the technology they had was great.
The reason they released the EV1 was due to government, and the reason they killed it was due to government. It was an entirely unprofitable car that was released at the wrong time (gas was cheap) and for the wrong reasons (very few environmentalists). Outside of the blame-scope of the mandate, the EV1 died because there was not enough demand and GM thought they could make easier money with gas powered cars. And they were right.
What's sad is they let go an area of development that, if they had kept until today, would have put them above even Toyota.
I think politics made it untenible for GM to publicly develop EV tech, as state and federal governments were itching to mandate performance regardless of market demand. Once bitten twice shy - GM foolishly boasted their EV breakthroughs, and the the California Air Resources Board took them at their word and mandated the tech.
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