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The 24 Hour War: Adam Carolla's new documentary brings the Ford-Ferrari battle back to life

Long before the GoPro or even videotape, races were filmed by guys standing next to the track with 16-millimeter cameras. The images kind of shook, they didn't always hold focus, and over the years all the color has faded out of the film. It all conspires to make the endurance racing battle between Ferrari and Ford in the 1960s seem like ancient history. What Adam Carolla and Nate Adams' new documentary The 24 Hour War does best is make that inter-corporate battle feel as if it happened yesterday. Yeah, if you're an obsessive you've likely seen most of the shaky-cam race footage used here before. But what you haven't seen are the interviews that frame the war and explain the egos and engineering behind the legends. It's not a perfect movie, but it's the sort of movie only fanatics could make. And it's easier to appreciate if you're a fanatic too. The first 25-or-so minutes of the documentary are taken up with histories of both Ford and Ferrari and an overview of how ridiculously deadly motorsports were in the Sixties and earlier. It's all interesting (if familiar) stuff, that could have been handled in about a third the time with some brutal editing. Still, the two protagonists in the story are well drawn: the racing-crazed Enzo Ferrari, who only builds road cars to stay solvent; and Henry Ford II, who after being thrown into the deep end of the Ford Motor Company management in 1943 at the age of 25, wasn't going to be humiliated after Ferrari pulled out of a deal to sell him the sports car maker. With one notable exception, the filmmakers were successful in rounding up practically everyone involved who is still alive for an interview. That includes Dan Gurney, Mario Andretti, Pete Brock, Bob Bondurant, Piero Ferrari, Mauro Forghieri, Carlo Tazzioli, and even Ralph Nader. There are good archival insights from the late Carroll Shelby. But where's A.J. Foyt? After all, he co-drove the stupendous Ford GT40 Mark IV with Dan Gurney to victory at Le Mans in 1967. The interviews make the movie worthwhile, but it cries out for more technical depth about the cars themselves. Yes, the GT40 was complex and engineered practically like a production car, but there's no mention of how the Lola Mk VI and Eric Broadley kicked off the development. There's only a superficial explanation of what made the American-built Mark IV such a leap forward.

GM, Ford, Toyota, Stellantis CEOs want EV tax credit cap lifted

For just over a decade now, the U.S. has had a federal tax credit worth up to $7,500 for buyers of electric cars and plug-in hybrids. The catch has been that, once 200,000 of them were claimed for a manufacturer, that credit would be phased out. Now, automakers are asking for this cap to be lifted across the board, specifically General Motors, Ford, Toyota and Stellantis. The request comes in the form of a joint letter to Congress (which you can read here), signed by the CEOs of each company. And the ask really is as simple as that. The automakers would like the cap lifted for all EV manufacturers, and instead have a sunset date for the tax credit put in place. Broadly speaking, they want it lifted because of concerns about rising costs from materials and supply chain issues, which can lead to higher prices and could discourage buyers from getting an EV. It would also put automakers back on an even playing field. GM reached its tax credit cap a few years ago, meaning that none of its EVs are eligible for the tax credit. So while it reaped the benefits early on, it now has something of a disadvantage to competitors with credits remaining, such as those that signed on to this letter. GM wouldn't be the only beneficiary. Tesla ran out of credits years ago, too. Nissan still has credits, but likely not for much longer, as InsideEVs reports around 190,000 Leafs have been sold in the U.S. as of April. So it will probably face a phase-out soon, just as the anticipated, and more expensive, Ariya is heading to market. Making this change would also seem like a good choice for continuing to stimulate EV sales, if that's what the government is looking to do. While EVs are now reaching parity in practicality and performance with gas-powered cars, having an additional financial incentive will surely keep them looking more attractive. And automakers can push EVs without fear of running out of credits early. Certainly some sorts of changes to the EV tax credit are likely. There are bills in the works focusing on cap changes as well as the amount of money available, and which vehicles are eligible. Credits up to $12,500 have been proposed, plus possible credits for used EV sales and restricting some credits to vehicles of certain price brackets. Of course, any changes will require some cooperation in a deeply divided Congress. Related Video: Government/Legal Green Chevrolet Chrysler Ford Toyota Electric EV tax credit

Ford finds flex-fuel engine design plays big role in emissions output

How bad is ethanol for your engine? There's been a lot of debate on this issue as the US considers upping the biofuel content in the national gasoline supply from 10 percent (E10) to 15 percent (E15). The ethanol industry and some scientists say higher ethanol blends show no "meaningful differences" in new engines while the oil industry says ethanol creates health risks. Researchers working at the Ford Research and Innovation Center decided to take a closer look at how a wide range of gas-ethanol blends - E0, E10, E20, E30, E40, E55 and E80 - affected the emissions coming out of a flex-fuel 2006 Mercury Grand Marquis. To see the full report, printed in the journal Environmental Science & Technology, requires payment, but there is an abstract and Green Car Congress has some more details. The gist is that, "with increasing ethanol content in the fuel, the tailpipe emissions of ethanol, acetaldehyde, formaldehyde, methane, and ammonia increased." At least NOx and NMHC emissions decreased. The researchers say that the effects are due to the fuel and "are expected for all FFVs," but that the way that a manufacturer calibrates the engine will affect NOx, THC, and NMOG emissions. It's this last bit that's important, since the researchers found, "Higher ethanol content in gasoline affects several fundamental fuel properties that can impact emissions. ... These changes can have positive or negative effects that can depend on engine design, hardware, and control strategy. In addition to direct emissions impacts, higher ethanol content fuel can also provide more efficient combustion and overall engine operation under part-load conditions and under knock-limited higher-load conditions." So, as we head towards more ethanol in our fuel supply (maybe), manufacturers are going to need to learn how to burn it most efficiently.