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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 is developing gas and diesel inline-six engines

Once the favored engine configuration for luxury and high-performance cars, the inline-six suffered a bit when the transverse (east-west) engine configuration became popular during the shift to front-wheel drive cars. The packaging benefits are obvious – no driveshaft or transmission intruding on passenger space or rear differential on cargo volume, plus turning the engine 90 degrees meant the front of the car could be shorter. But the inline-six is slowly, slowly crawling out of near-obsolescence, notably in BMW, Jaguar-Land Rover and Mercedes-Benz products. Add Mazda to that mix: An investor report first spotted by Jalopnik and confirmed by Mazda reveals that the company is developing a Skyactiv-X and Skyactiv-D inline-six that will be installed longitudinally (north-south) in a new "Large Architecture" platform. Before reading any further, let's catch up on the Skyactiv-X and -D technologies. The former basically burns gasoline like diesel, providing some benefits and advantages of both types of combustion - here's an explainer on how that all works. We drove a prototype 2.0-liter Skyactiv-X 4-cylinder engine in a Mazda3 mule, too. And the Skyactiv-D series of engines is a comparatively typical turbodiesel. Mazda has a 2.2-liter turbodiesel inline-4 that has had a long and convoluted development and certification process, but is finally showing up in the 2019 CX-5. Since Mazda has implemented these technologies in existing four-cylinder engines, we would assume that the new Skyactiv engines will be "modular" – that is to say, they'll essentially be the existing engines with two extra cylinders, rather than an entirely new design. Jaguar-Land Rover is doing a similar thing with its Ingenium engine family. Assuming the Mazda engines will be modular would mean they'll be roughly 3.0-liter units, which is a common displacement for modern inline-sixes. And as we mentioned eariler, they'll be arranged longitudinally, unlike any other Mazda save the MX-5 Miata (and the long-departed rotaries), in a new vehicle architecture. As part of a medium-term plan over the next six years, Mazda will develop some unspecified vehicles on what it calls the "Large Architecture". These vehicles will have 48V mild hybrid and PHEV capabilities, and be able to use a version of Mazda's i-Activ AWD system. Why do this at all?

The 2020 Mazda CX-30 will start at $22,945 with 2.5L power

We saw the CX-30 debut in Geneva earlier this year, and now Mazda has made its U.S. specification and pricing official. To get right down to it, the new crossover that splits the small end of the company’s crossover lineup will start at $22,945. We also have some solid information about spec and trim levels for our market, with some notable differences to how it can be equipped in Europe in particular. For one, like the latest Mazda3, it can only be equipped with a 186 horsepower 2.5-liter engine (naturally-aspirated, to be clear). Europeans can get a range of engines, and our neighbors in Canada and Mexico can get a 2.0-liter gas engine. A six-speed automatic is similarly our only transmission choice. All trims are available with front- or all-wheel drive. No word on whether the (somewhat underwhelming) Skyactiv-D diesel or (rather incredible) Skyactiv-X compression-ignition engines will be available. The materials Mazda provided us ahead of the CX-30Â’s U.S. debut focus heavily on the vehicleÂ’s standard equipment, including the now standard Mazda Connected Services — offering a variety of remote functionality and monitoring via the MyMazda app. Nothing you wouldnÂ’t expect from this sort of connectivity feature, including remote start and lock/unlock, as well as a WiFi hotspot (via Verizon, which is the parent company of Autoblog) and emergency assistance calls. Note that itÂ’s a three-year free trial; after that it becomes a subscription service, with a price weÂ’ll share with you once we learn it. There are four trims for the CX-30. The base model has some decent standard equipment: an 8.8-inch infotainment display, automatic headlights and the standard i-Activsense safety suite including driver inattention alert, radar cruiser control, lane departure warning with lane keeping assist, emergency braking assist and automatic high beams. Notably, blind spot monitoring is not available in the base model; buyers will have to step up to the next trim, Select, to get that safety feature. WeÂ’re disappointed that itÂ’s not standard across the board. So too with Apple CarPlay and Android Auto, also only available on Select and above. The Select trim is $24,945, and provides those features mentioned above as well as leatherette seats, keyless entry and 18-inch wheels. The Preferred trim ($27,245) provides upgraded audio, heated front seats, a power driver seat, a black gloss grille and a SiriusXM trial.