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Ford F-Series Super Duty prototype reduced to smoldering mess of aluminum and steel [UPDATE]

The most important bit of information you need to know after looking through our high-res gallery of images depicting a prototype 2016 Ford F-Series Super Duty pickup truck burning to the ground is that nobody was hurt. There were two engineers inside the vehicle when it caught fire, and both exited to safety.
That's the good news. The bad news is that the truck, which appears to have been testing in Death Valley, appears to be a total loss, minus, of course, whatever information Ford can glean from the conflagration - particularly tracing it back to its root cause. Besides that, we're also expecting the body of the next Super Duty to be hewn from aluminum, as is the case with its smaller brother, the brand-new F-150. Note the little aluminum droppings littering the roadway as apparent proof of that.
Our spy photographers report that it took just 21 minutes for the F-Series Super Duty to burn completely to the ground. The fire appears to have started in the driver-side front wheel well, spreading to engulf the entire front end in three minutes. We can't confirm the source of the blaze, but we're curious if the car's black vinyl cladding, meant to obscure the secrets within, contributed to the fire.

Fewest vehicles ever found eligible for Most American survey

Once again, the most American car on the market is from an American brand. The Ford F-150 retained its number one spot in Cars.com's annual survey of the most American vehicles, trumping the Toyota Camry, which remains at number two.
Ford taking the top spot is small consolation, though, as the Detroit Three aren't too well represented here. General Motors scored a win at number seven, with the Chevrolet Corvette, while Chrysler squeaked in at number ten, with the Dodge Viper. Outside of those three vehicles, Toyota and Honda dominate the top ten.
What's most remarkable, though, is that there were so few cars available for this year's list.

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.