1969 Ford Mustang Mach 1 on 2040-cars

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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.

2021 BMW M3 and M4 vs all the high-powered sport sedans and coupes

Should you have a found a way to get past that schnoz, you've probably digested some of the basic specs for the all-new 2021 BMW M3 sedan and M4 coupe specs. They're plenty impressive. There's also, basically, two sets of them thanks to the regular and Competition versions that differ in engine output and transmission type.  But how do they compare to other ultra sport sedans and coupes? Well, we were wondering that too, so we fired up the Autoblog Comparison Spreadsheet Generator 5000 (aka me chained to my computer in a dark basement).  Sadly, there are surprisingly few competitors for the 2021 BMW M3. Rival sedans include the Mercedes-AMG C 63 and the Alfa Romeo Giulia Quadrifoglio, along with the Audi RS 5 Sportback sedan/coupe/hatchback thing. There's no more Lexus IS F, the Cadillac CT4 Blackwing has yet to arrive and Jaguar doesn't offer a spicy XE R.  Happily, there are more coupe rivals for the 2021 BMW M4, including the two-door versions of the AMG and Audi as well as the Lexus RC F. I also included the Ford Shelby GT350 and Chevrolet Camaro SS 1LE. On paper, they align incredibly well. On the street and on a track, I can personally attest that these Americans are fully capable of keeping up and/or bettering the fancy-pants luxury brands (and let's not forget there are even more powerful, hardcore versions available). If they don't align in terms of price or prestige, whatever. OK, let's get to the spreadsheet. Let's start with the coupes and note that I didn't bother listing the dimensions for the M4 Competition and C 63 S as they are identical to their "lesser" siblings.  I won't bother burning words explaining what you can see on the chart. Instead, I'll point out a few things that stood out to me. First, BMW M comes awfully close to matching the output of AMG's twin-turbo V8 despite having two fewer cylinders. Similarly, Audi manages to better the 0-60 time of the M4 Competition and tie the C 63 S despite being WAY down on power. It's not like it weighs less. Magic? Second, and speaking of 0-60 times, remember the importance that transmission and drivetrain make with them. It's not just horsepower and torque. An automatic will be quicker and easier to launch than a manual, while all-wheel drive provides more instantaneous and beneficial grip.

Jeep Grand Cherokee, BMW i8, Ford F-150 win 2015 Green Car Awards in DC [w/video]

There were three shiny trophies handed out at the Washington Auto Show last week by Green Car Journal, and they went to three different examples of what "green" means in the automotive industry today. The Jeep Grand Cherokee EcoDiesel won the award for the 2015 Green SUV of the Year, the BMW i8 was named the 2015 Luxury Green Car of the Year and the Ford F-150 took the 2015 Green Car Technology Award honor. There is a case to be made that the aluminum body of the new Ford truck will make a bigger impact in the overall fuel usage in the US than almost any other vehicle, given the numbers of F-150s that Ford sells each year. The B20 biodiesel-capable Jeep gets up to 30 miles per gallon on the highway. And the i8 puts all sorts of new, fuel-saving technologies into an attractive package. Looking over the winners, and the list of finalists you can see in our photo gallery, and you can see that the definition of green is expanding every year. You can watch Green Car Journal editor Ron Cogan hand out the 2015 awards in the video below and we'll for sure be paying attention to what wins next year. 2015 Luxury Green Car of the Year, Green SUV of the Year and Green Car Technology Winners Announced WASHINGTON, Jan. 22, 2015 /PRNewswire/ -- Green Car Journal has named the Jeep Grand Cherokee EcoDiesel its 2015 Green SUV of the Year™ and the BMW i8 its 2015 Luxury Green Car of the Year™, with the aluminum-bodied Ford F-150 earning the magazine's 2015 Green Car Technology Award™. Winners were determined by a jury of Green Car Journal editors and automotive experts. The prestigious awards were announced in Washington, D.C. today at a Green Car Awards™ press conference held during the Washington Auto Show's Public Policy Day at the Washington Convention Center. "These are truly commendable vehicles representing the 'best-of-the-best' in so many ways," said Ron Cogan, editor and publisher of the Green Car Journal and CarsOfChange.com. "The auto industry's very early focus on small cars and efficiency-for-environment tradeoffs has evolved to now include a more dynamic field of 'greener' models in all vehicle classes. Those wanting greater efficiency or better environmental performance are no longer constrained by limited choices or vehicle types that fall outside their top purchase preferences.