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GM details CEO Mary Barra's pay, contacts with investor David Einhorn

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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.

2013 Shelby 1000 unleashes its 1,200 horsepower ahead of NY show reveal

True story: Last fall, I had the opportunity to spend a week with Ford's new 2013 Shelby GT500 - the Blue Oval's factory Mustang with 662 horsepower and 631 pound-feet of torque. It's an amazing beast, to be sure. I'm not sure if it was Michigan's damp streets strewn with potholes and wet leaves, but at no point did I ever say to myself, "You know, Ford is on to a really good thing here, but what it really needs is about twice the power." And yet, for people in warmer climes with infrastructure in better nick - or for those whose muscle cars live their lives out on the track, there's apparently sufficient demand to warrant just such a beast.
Quick studies will recall that Shelby American launched its 1000 last year to commemorate its 50th anniversary, but it is returning to the New York Auto Show with a fresh version based on the 2013 GT500 I drove. The 2013 Shelby 1000 whips up 1,200 horsepower on pump gas thanks to beefed-up forced induction, engine internals and cooling. Wisely, it also incorporates an adjustable suspension and big brake package to make sure those ponies have the best chance being safely deployed to the ground.
What price the world's most powerful "production" muscle car? $154,995 for starters - donor GT500 not included. What, no convertible variant?