1985 Mazda Rx-7 Gsl 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.

This California rally is vintage Japanese car heaven

What's so good about the future? This is what I was thinking when some folks at Mazda invited me and a handful of other journalists to join them on the second-annual Touge California. It's a rally for classic Japanese cars that covers a huge chunk of Southern California's twistier roads, where fans get to test their beloved machines. Oh, and it attracts swarms of admirers with cameras. "It is not a race. It is a vintage touring rally," said Ben Hsu, editor in chief of Japanese Nostalgic Car, and one of the coordinators of the event. "In Japan, touge most definitely refers to racing, whether timed, in touge battles, or drifting antics. Touge California was created to give drivers of Japanese classics a taste, as close as possible, of the types of roads their cars were forged on." Touge California was created to give drivers of Japanese classics a taste, as close as possible, of the types of roads their cars were forged on. We started the day on a mundane stop-and-go freeway drive from Mazda's Irvine headquarters to Escondido, me riding shotgun with my journalist co-driver in a 2016 Miata. But Mazda also brought along three heritage products on this trip – a 1985 RX-7 GSL-SE, a 1978 GLC three-door hatchback, and a 1975 REPU (rotary engined pickup) – serving as reminders of the company's history in the U.S. The group of Mazdas was joined in Escondido by many more Mazdas. And Toyotas, Hondas, Datsuns – so many 240Zs – and the odd Subaru and Mitsubishi. In total, 28 cars were at the start line. "We doubled the field this year, and made the route longer – 200 versus 120 miles," Hsu said. "We separated the cars into two run groups based on speed and a mix of makes and models." I spent the first part of the rally in the Mazda pickup to get a taste of rotary power. It was my first experience behind the wheel of a Wankel-powered vehicle, my first time driving a small Japanese truck from the '70s, and my God that thing has a lot of power. I had a few scares when I had to stand on the brakes, and I found the shift throw's immense length disconcerting – it felt like third gear engaged somewhere in front of the dashboard, with fourth somewhere in the bed. The truck was a great introduction to the rotary, however, and to '70s Japanese cars. Especially in Southern California, old Japanese cars aren't as novel to casual observers as they might be in other parts of the country.

Mazda will introduce a groundbreaking new diesel engine in 2020

Mazda is preparing to introduce its first series-produced electric car, but it's not sending the diesel engine to the automotive graveyard. The company remains committed to turbodiesel technology, and it will take its efficiency to the next level when it introduces a new range of engines in 2020. "We are sticking to diesel engines. In 2020, we have a new approach to diesel engines. We will show you how clean and very efficient diesel engines can be," pledged Christian Schultze, the head of research and development for Mazda's European division, in an interview with British magazine Autocar. He declined to provide specific details about the breakthrough that made a cleaner, more efficient diesel engine possible. Asked about how the engine compared to SkyActiv-X, the carmaker's newest and most innovative gasoline-powered engine, he pointed out "there are not so many differences between [gasoline] and diesel." His announcement falls in line with Mazda's belief that it's crucially important to consider real-world emissions over the life cycle of a car, not just local emissions. The company has realistically stated the internal combustion engine -- whether it burns gasoline or diesel -- will "continue to be the base power for 85 percent of all cars up until 2035." It might join forces with a 48-volt electrical system, or it might be part of a plug-in hybrid drivetrain, but it will still be around in 15 years. To that end, it's important to keep improving the technology, and not to prematurely pen its obituary.  "We hope governments wake up and see that electrification is one way but there are others, too," Schultze concluded, adding that SkyActiv-X is a step in the right direction. Mazda will release more details about its next turbodiesel engine in the coming months, but it's too early to tell whether it will available in the United States, where demand for oil-burning cars has hit rock bottom. As of 2019, the only diesel-powered Mazda sold in America is an upmarket variant of the CX-5 (pictured). Auto News Mazda Diesel Vehicles