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Mazda on Wednesday provided the first glimpse at the next-generation Mazda 3 and confirmed the vehicle for a reveal in November, which points to a debut at the 2018 Los Angeles auto show on that month.

Apart from a teaser video that appears to show both hatch and sedan variants, there aren’t any additional new details to go on. However, Mazda has been dropping plenty of hints about its new 3 over the course of the past 12 months.

The Kai concept car (shown below) unveiled at the 2017 Tokyo auto show previews the design and is said to closely resemble the production version. The concept was also built on the new SkyActiv-Vehicle Architecture, Mazda’s latest modular platform which makes its own debut in the new 3.

The platform is also said to offer improved dynamic performance compared to Mazda’s current design, as well as a quieter, comfier and more refined ride.

Mazda Kai concept, 2017 Tokyo Motor ShowMazda Kai concept, 2017 Tokyo Motor ShowMazda Kai concept, 2017 Tokyo Motor Show

The platform also integrates Mazda’s new SkyActiv-X engine which promises diesel-like fuel economy but with the cleaner emissions of gas engines. The engine features what Mazda calls Spark-Controlled Combustion Ignition.

The innovation is to ignite a very small amount of gas-air mixture that is injected very close to the spark in a high-compression engine. This in turn raises the pressure on the much larger volume of lean gas-air mixture in the rest of the combustion chamber, creating an effective compression ratio high enough to cause that mixture to spontaneously ignite. But at sufficiently high temperatures, the lean gas-air mixture is able to ignite purely from compression, just like in a diesel engine. The process is generally referred to as Homogeneous Charge Compression Ignition, or HCCI for short.

Switching between spark and spark-less modes is a complicated juggle that Mazda appears to have solved. We tested a prototype of the new 3 fitted with the SkyActiv-X engine a year ago. The engine in prototype form featured a displacement of 2.0 liters and a high compression ration of 15- or 16-to-1, and with a bit of mixed driving was delivering close to 40 mpg when equipped with an automatic transmission.

Watch for more on the new Mazda 3 to surface in the lead up to the L.A. auto show which starts November 26. Mazda is also likely to use the show to introduce an updated CX-5. For our complete coverage, head to our dedicated hub.


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