movie did not tell its viewers." He repeats GM's claims that, "despite the substantial investment of money and the enthusiastic fervor of a relatively small number of EV1 drivers—including the filmmaker—the EV1 proved far from a viable commercial success." He submits it is "good news for electric car enthusiasts" that electric vehicle technology since the EV1 was still being used. It was used in two-mode hybrid, plug-in hybrid, and fuel cell vehicle programs. Barthmuss also cites "GM's leadership" in flex-fuel vehicles development, hydrogen fuel cell technology, and their new "active fuel management" system which improve fuel economy, as reasons they feel they are "doing more than any other automaker to address the issues of oil dependence, fuel economy and emissions from vehicles." Responding to the film's harsh criticisms for discontinuing the EV1, Barthmuss outlines GM's reasons for doing so, implying that GM did so due to inadequate support from parts suppliers, as well as poor consumer demand despite "significant sums (spent) on marketing and incentives to develop a mass market for it." Barthmuss claimed he personally regretted the way the decision not to sell the EV1s was handled, but stated it was because GM would no longer be able to repair it or "guarantee it could be operated safely over the long term," with lack of available parts making "future repair and safety of the vehicles difficult to nearly impossible." He also claimed that "no other major automotive manufacturer is producing a pure electric vehicle for use on public roads and highways." In March 2009, however, outgoing CEO of GM Rick Wagoner said the biggest mistake he ever made as chief executive was killing the EV1 car and failing to direct more resources to electrics and hybrids after such an early lead in this technology. GM has since championed its electric-car expertise as a key factor in development of its 2010 Chevrolet Volt, Chevy Spark EV, and the Chevrolet Bolt. Reception On review aggregator website Rotten Tomatoes, the film has an 89% approval rating based on 105 reviews, with an average rating of 7.19/10. Metacritic, another review collator, reported a positive rating of 70, based on 28 reviews polled. Manohla Dargis of The New York Times wrote, "It's a story Mr. Paine tells with bite. In 1996 a Los Angeles newspaper reported that 'the air board grew doubtful about the willingness of consumers to accept the cars, which carry steep