2010 Mercury Grand Marquis Ls Sedan 4-door 4.6l 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.

Is this '47 Chevrolet a rat rod or a sports car?

These days there are plenty of vehicles that blur the conventional automotive class structures. For instance, was the Honda Crosstour a wagon or an SUV? And what exactly was the Nissan Murano CrossCabriolet? Regardless, those line-blurring cars (or trucks) are out there, and though this one didn't roll off a production line, it's still quite the automotive head-scratcher. Hailing from Missouri, this epic creation is one part mad science experiment, one part 1947 Chevrolet pickup, and one part '95 Mercury Cougar. Add it all up and you get an awesome truck-sports-car hybrid, complete with an outrageous wing and a V8 to boot. And interestingly enough, it's up for sale . RELATED: Check out this Wild-Styled Lamborghini Rat Rod So how does it all come together? According to the listing, the Chevrolet truck cab (which had previously been chopped) was sanded down to bare metal and given a thorough shellacking of clear coat. It was then melded together with the front end of a 1995 Chevrolet S10 pickup truck, and set low to the ground on Bilstein suspension drop spindles. Stance achieved. But instead of fielding an engine from either of those pickups, it pulls its heart from a 2005 Chevrolet Tahoe SUV—a big 5.3-liter V8 heart, that is. It comes backed-up to a GM Turbo 400 automatic transmission. Towards the rear however is where things get really interesting. A Copper Pearl coated tube frame chassis both attaches the rear independent suspension (a la Mercury Cougar) to the racy spoiler, as well as secures the rat rod's rear-mounted radiator, fan, and fuel tank. I'm not quite sure why, but it just looks glorious. RELATED: Reports Say Mid-Engine Corvette Will Arrive in 2018 Inside the vintage cab, the Chevrolet furthers its racing proclivities (it's said to have won burnout and auto-cross events) with a pair of harnessed racing seats, a drift brake, a detachable steering wheel, and a tachometer with oil and temperature gauges, but oddly no speedometer. The shifter is a crescent wrench. And its shift boot? That's a Crown Royal Purple bag. All in all, this grin-worthy Frankenstein creation tallies up bits and pieces from four different vehicles (five if you include the Camaro wheels), which make it truly a mash-up of epic proportions. Internet, what do you think? Related Video: This article by Zach Doell originally appeared on Boldride. Design/Style Chevrolet Mercury Auctions Coupe Special and Limited Editions Classics eBay rat rod

Petrolicious shows Mercedes 280SL as architecture in motion

While still an absolute beauty today, the design of the pagoda-roof W113 Mercedes-Benz SL was revolutionary when it debuted. Moving away from the soft curves of the previous SL models, the all-new generation brought an upright, angular shape that was as much architectural as automotive. In the latest video from Petrolicious, owner and architect Daniel Monti expounds on the inspiration that he gets from his 1969 280SL's fantastic styling. The roof is the most famous design feature of this generation of SL. Look at the top from the front or back, and you can see a gentle, downward arc that evokes the look of a pagoda. That one styling element is also a fabulous counterpoint to a vehicle that is largely more angular than curvaceous. Petrolicious wonderfully illustrates how some of the SL's form-follows-function design aesthetic can be found in the architect's work in this video's heaping helping of mid-century modern goodness.