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2014 Ford Fiesta 1.0L EcoBoost

I'll be honest; when Ford first unveiled its 3.5-liter EcoBoost V6, I was skeptical. Past attempts at building turbocharged American cars were almost universally awful, I reasoned, so why would Ford's latest effort be any different? This may seem foolish today, considering the success that the growing EcoBoost range has achieved - particularly the 2.0-liter and 1.6-liter mills. Yet I once again found myself questioning Ford.
It's the makeup of the 1.0-liter, turbocharged three-cylinder slotted into the compact engine bay of this Fiesta that has a way of breeding doubt. Three-cylinder engines remain an extreme rarity in the US. What's more, they earned a less-than-desirable reputation for applications in the 1980s and 1990s, and my trepidation about this latest three-pot as a result.
As I found out, though, history is a poor informant of modern technology. The thrust available in other cars with the EcoBoost badge on the back has not gone missing here; something the International Engine of the Year committee has lauded. That august body named the 1.0-liter Ecoboost the best engine of 2012 and 2013. After a week of driving, it didn't take long for my fear of threes to get turned into something like that line of thinking.

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.

Ford spotted testing new Fiesta RS hot hatch

There's a lot to love about Focus ST and Fiesta ST, but if neither of those is enough for you, we've got good news: Ford has even more potent RS versions of both in the works. The Focus RS we already saw last month, but here we have our first spy shots of the smaller Fiesta RS undergoing testing. Spotted alongside still-camouflaged prototypes of its big brother, the new Ford Fiesta RS is wearing a modified front end, flared fenders packing a wider track and a revised rear-end. The beefed-up bodywork is all well and fine, but we're looking forward to finding out what's underneath it all. Sources point towards a 250-horsepower version of Dearborn's 1.6-liter EcoBoost turbo four, along with upgraded brakes and suspension. The big question, though, is whether the production Fiesta RS will pack the new performance all-wheel-drive system from its larger counterpart, or stick with front-drive and some sort of clever diff. It may be too early to tell, as this pocket rocket is likely a good year away from its debut, but in the meantime you can scope out the spy shots in the slideshow above for a taste of what's to come. Related Video: