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Mazda's next-gen SkyActiv engines will drop spark plugs in favor of high compression

Homogeneous charge compression ignition, or HCCI, is the black art of internal combustion engines that aims to produce diesel-like fuel efficiency for the cost of gasoline. Although some of its competitors have developed and subsequently given up on the tech, Mazda confirmed that the next-generation of SkyActiv engines will employ HCCI technology, improving fuel economy by 30 percent and at the same time reducing exhaust emissions. According to Nikkei, a new SkyActiv family of engines is set to debut under the hood of the next-gen Mazda3 sometime in 2018 before making its way into other vehicles. In simple terms, an engine that uses HCCI burns the air/fuel mix using pressure instead of with spark plugs, just like a diesel. At 14:1, Mazda's gasoline engines already have some of the highest compression ratios out there, but a move to HCCI means cranking up the compression to 18:1. While the tech sounds relatively straightforward, using HCCI means dealing with a number of side issues. It's one of those "on paper" ideas that compounds problems when put into practice. Heat, revs, and fuel must all be carefully managed as gasoline doesn't burn the same way as diesel. Mazda is mum on details, but the automaker seems confident that the issues have been sorted. If the new engines do indeed make it to market with HCCI, Mazda will have out-engineered GM, Daimler, and Hyundai, all of which have tried and failed to develop HCCI engines in a cost-effective package. With the market moving towards electrification, it's interesting to see Mazda still focusing so heavily on traditional internal combustion gasoline engines. It's an indication of where they see the market heading for the next few years. Although the automaker has been hesitant to move forward with hybrid and electric powertrains, Nikkei also reports that Mazda will begin mass production of EVs in 2019. Related Video:

Mazda and Clemson collaborate on Deep Orange 3 concept

There are school projects, and then there's the Mazda Deep Orange 3 Concept Car, a one-off built by Clemson University automotive engineering students and designed by Frederick Naaman from the Art Center College of Design in Pasadena. Clemson students unveiled the chassis at the 2012 SEMA show in Las Vegas, although this is the first showing of the car fully clothed.
Sporting a unique hybrid powertrain that can automatically switch between front-, rear-, and all-wheel drive. A gas-powered engine handles the fronts, while the rears are powered by an electric motor and a battery pack. The Deep Orange 3 also has an unusual three-plus-three layout, making it a much cooler version of your parent's old Vista Cruiser. The exterior sheetmetal clearly follows Mazda's established design language, and looks like it could easily pass for a five-door version of the Shinari Concept. It really is a great looking vehicle.
The Deep Orange 3 was part of Clemson's graduate-level auto engineering program, and is a regular partnership between the east coast school and the Pasadena-based design college's students. Clemson, Art Center and Mazda will be showing the Deep Orange 3 at the Center for Automotive Research Management Briefing Seminars in Traverse City, MI, from August 5 to August 8. Click through for a press release from Clemson University.

The 2017 Mazda CX-5 is new, and oh so very red

After examining the teaser photo and poring over spy photos, we knew that the 2017 Mazda CX-5 would adopt some design features from the larger CX-9 and Chinese-only CX-4. What we didn't know, though, is that the CX-5 would look like a miniature version of the CX-9. From the outside it's obvious the design is all new. The front of the SUV looks nearly identical to that of the CX-9's. Gone is the cutesy, roundish face in favor of a more angular theme. The headlights are slimmer, while the grille ditches the horizontal bars for a mesh pattern. Mazda calls the design theme Kodo - soul of motion, and the original 2013 CX-5 was the first production model under this mantra. View 12 Photos The changes at the back are less drastic than on the CX-5's new beak. The black trim that underlines the rear fascia is less prominent and the taillights looks leaner, but it's harder to tell the differences between the old and new model. Mazda says the CX-5 will be available with two engines here: the Skyactiv 2.5-liter gasoline engine and the Skyactiv-D 2.2-liter diesel (the Skyactive-D 2.0-liter, currently only used on Sport models, has been dropped for our market). We don't have specifics on power and torque yet, but in the old CX-5 (and current Mazda 3) the 2.5-liter four-cylinder generates 184 horsepower, while the diesel makes 173 hp and 310 pound-feet of torque. We expect front- and all-wheel-drive options, and of course we're hoping that the six-speed manual (previously on the base, front-drive model only) stays around as an alternative to the six-speed automatic. The interior follows the template of recent Mazdas, with the infotainment screen sitting on top of the dashboard with a control knob located aft of the shift lever. We'll have more information on the 2017 CX-5 at the vehicle's debut later today at the 2016 Los Angeles Auto Show. Related Video: