2000 Mazda B-series on 2040-cars

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Mazda hard at work on Skyactiv 2 engine technology

As Mazda continues the current rollout of its still-new Skyactiv technology, the automaker is already looking at improving its family of engines for even better fuel economy and emissions reductions. Automotive News reports that with stricter fuel economy and emissions regulations planned for 2020 and 2025 in Europe, Mazda will likely release engines with next-generation Skyactiv 2 technology by the end of this decade, and Skyactiv 3 units just five years later.
The latter is expected to focus on improved engine cooling and lessening energy losses, but the big news in AN's report is that the next-gen Skyactiv 2 engines will use Homogeneous Charge Compression Ignition, or HCCI. This type of ignition is very similar to how a diesel engine operates (with high compression and using the compression stroke for fuel combustion rather than spark plugs), a method said to provide a cleaner and more efficient fuel burn - to the tune of a 30-percent improvement in fuel economy compared to current Skyactiv engines. Other automakers, including Hyundai, have already announced they are developing HCCI powerplants with similar technology and characteristics, so Mazda likely won't be a lone wolf here.
Equipped with HCCI technology, Mazda figures to be able to compete with larger automakers in terms of fuel economy and emissions without resorting to hybrid powertrains, continuously variable transmissions or automatics relying on more forward gears (eight or more) for optimal efficiency. Some of the challenges of HCCI, according to AN, include the need for better engine cooling, risk of misfire at high and low rpm and uneven engine performance based on fuel properties.

Mazda3 Skyactiv-Hybrid and CNG Concept shown in Japan

Mazda has received a tremendous amount of public and industry praise in the last few years, following up the successful introduction of its Skyactiv technology (powertrain and otherwise), with strong products like CX-5, Mazda6 and most recently, the Mazda3. At the Tokyo Motor Show, Mazda has taken yet another step forward with Skyactiv and the 3, showing the compact (called "Axela" in Japan) with an all-new compressed natural gas engine in the Skyactiv-CNG Concept.
The end result of the Skyactiv-Hybrid is fuel consumption estimated at something like 74 miles per gallon.
Mazda thinks that CNG-powered vehicles are due for an uptick in demand, and the company believes this new powertrain will add valuable breadth to the Mazda3 range. The CNG Concept is actually a duel-fuel vehicle, capable of running on either natural gas or gasoline. In fact, we're told that the high compression ratio (14:1) inherent in Skyactiv-technology gasoline engines makes conversion to CNG particularly simple.

2016 Mazda CX-5 keeps it simple

Take a long, hard look, folks. This is the refreshed 2016 Mazda CX-5, which makes its debut at the Los Angeles Auto Show today. And if you're thinking, "Say, that looks just like the old one," you really aren't alone. The visible updates certainly aren't major - Mazda has instead focused on giving the already-good CX-5 some thoughtful upgrades to make it a more attractive package than ever.
Outside, there are some slight changes to the styling, including new LED light signatures at the front and rear, as well as redesigned foglamp housings. Uplevel models also ride on attractive new 19-inch alloy wheels, with a dark finish.
Under the hood, it's all the same. Mazda's Skyactiv 2.0- and 2.5-liter four-cylinder engines carry over, with 155 and 184 horsepower, respectively. Front-wheel-drive, 2.5-liter models get a small bump in fuel economy, too - the CUV is now rated at 26 miles per gallon city and 33 mpg highway, up from 25/32. Models equipped with the automatic transmission now benefit from different drive modes, as well.