1954 Mercury Woodie 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.

Junkyard Gem: 1981 Mercury Cougar XR-7

The story of the Mercury Cougar involves more plot twists and unexpected digressions than that of just about any other Detroit car, with successive Cougar generations based on the Ford Mustang (1967-1973), the Ford Torino and/or Thunderbird (1974-1979), various Fox Fords including the Thunderbird (1980-1988), the MN12 Thunderbird/Lincoln Mark VIII (1989-1997), and the Ford Mondeo (1999-2002). There were wagon and sedan Cougars for brief periods, just to confuse everybody, and the rakish XR-7 Cougars sometimes lived on different platforms from their ordinary non-XR-7 counterparts. I think the Late Malaise Era Fox XR-7s are among the most interesting of the bunch, so I was quite excited to spot this tan-over-gold '81 in a Denver yard. I tried to count the number of screaming-cat badges on and in this car and gave up once I hit a dozen. The steering wheel, door panels, C pillars, center console, and — of course — the hood ornament all boast snarling felines. Earlier Cougars had emblems showing full side views of stalking catamounts, but the Cougar logo for the 1980s showed just the head. This car got the optional center console, which I hear is quite a rarity. You had to pay $174 extra (that's around $513 in 2020 dollars) for an AM/FM/cassette audio system in the '81 Cougar, but at least the air conditioning was standard equipment. Believe it or not, thieves used to steal these radios. Kumpf Lincoln-Mercury still exists in Englewood (as Landmark Lincoln), and the yard that now houses this car can be found just 15 miles up Broadway on the north side of Denver.  The padded landau roof hasn't fared so well beneath the fierce Colorado sun, but overall this car seems very solid. Sadly, only the Mustangs and (once in a long while) Fairmonts get much love from the Fox Ford crowd these days. Three Mercury "wire wheel" hubcaps and one from a Lincoln. The base engine in the 1981 XR-7 was the "Thriftmaster" 200-cubic-inch (3.3-liter) straight-six, but very few XR-7 buyers would have refrained from checking the box for one of the two optional Windsor V8s. I can't tell if we're looking at the 255-cubic-inch (4.2-liter) version or the 302-cubic-inch (5.0-liter) one here, but real-world drivers might not have noticed the difference between the 120-horse 255 and the 130-horse 302, anyway. The non-XR-7 Fox Cougars had five-speed manual transmissions as base equipment (which nobody wanted), but all 1981 XR-7s had automatics.

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.