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Mazda development chief discusses future rotary platform

The switch can again be flicked from "The Rotary Engine is Doomed" to "The Rotary Engine Lives!" Mazda is re-tooling the once nearly forgotten rotary to work as a range extender for hybrid vehicles, with a chance for it to do even more than that. The latest information sounds rather promising for those still holding out a candle for the rotary. Mazda's powertrain development chief, Ichiro Hirose discussed future rotary plans with the Australian Drive at the CX-30 crossover's launch. Hirose told Australia's Drive that Mazda is currently working with a very flexible and efficient rotary hybrid platform that doesn't necessarily come with the heavy emissions and fuel consumption baggage the rotary engine has earlier been saddled with. Hirose calls the rotary-based solution "XEV," referring to its adaptability. "It has the generator function and also it can be used to provide the drive force to give you traction. [...] Because the rotary engine is compact in terms of its packaging size [and] if we should choose to do so we can have the generator, rotary engine and electric motor all in one [driveline] because of the small packaging." The result is an electrified platform that could be made to work as a mild hybrid, series hybrid or a battery electric vehicle with a rotary range extender (if given a plug), depending of the required implementation. It's as if Mazda had a slider to adjust the balance of using a rotary engine and using electric power, to make the platform more of a jack-of-all-trades. Hirose explained: "If you reduce the other way around it could be a pure battery-electric, using really the rotary engine as a range extender and, according to the balance, you can even provide something akin to the series hybrid that is providing the drive force. [...] So, we are looking at a wider coverage and scope. Based on this architecture it allows us to do that, to explore the huge range of applications we can have with the rotary." The platform would also be flexible when it comes to meeting various stringent emissions standards. To be able to sell XEV-based vehicles globally would mean introducing a certain setup for one region and one for another, keeping in mind when the rotary power would kick in and how. While Hirose keeps the question open whether these vehicles would make it for sale in the United States, he says Mazda would be able to make them pass U.S regulations. "I'm just saying that — theoretically — if we were to introduce it in the U.S.

2019 Subaru Forester vs compact SUV rivals: How they compare on paper

We've seen what the 2019 Subaru Forester looks like (pretty much the same). We've found out how much it's going to cost (just a bit more). And also how much bigger and more powerful it'll be (appreciably on both counts). Now it's time to see how all of that compares to its top compact SUV rivals. While you can see the same engine and dimension specs for every compact SUV here, for this comparison featuring the latest 2019 Forester info, we've decided to define "top rivals" as those that the 2018 model was most frequently cross-shopped with. That means the 2018 Honda CR-V, 2018 Toyota RAV4, 2018 Mazda CX-5 and 2018 Nissan Rogue. At the time of this writing, none of their respective manufacturers had released data for 2019 models. We also included info for the 2018 Forester as well. So, without further blather, cue the Spreadsheet-o-Matic 3000. How big are they? The 2019 Forester may look nearly identical to the compact crossover it replaces, but it's nevertheless bigger and heavier. In particular, its wheelbase has increased from being the smallest in the segment to one that's pretty much average. It's a good bet that this gain is the reason rear seat legroom has also increased. Width is also up, but the Forester actually remains the narrowest compact SUV. As for other noteworthy dimensions, the new Forester now has the most maximum cargo capacity of any compact SUV with 76.1 cubic feet. Now, it should be noted, that's without the panoramic sunroof that comes on all but the base model. With it, max capacity shrinks to 70.9 cu-ft. Two points about that. First, Subaru is the only company that calls out this difference, and all the others almost certainly are not measuring with a sunroof. Second, this gives you an idea about how much of "maximum cargo capacity" includes space up high where you're probably not storing much cargo. As such, we included the Forester's biggest number and think it fairly indicates Subaru should carry the "biggest in segment" crown. How do their engines and fuel economy compare? Here's the most important takeaway here: The new Forester is tied for the best fuel economy in the segment, but that's with standard all-wheel drive. Everything else listed above is with front-wheel drive. The 2019 model also gets a welcome injection of power, resulting in the fourth-most base horsepower in the segment (or fifth, if you consider the CR-V technically holds spots 1 and 3).

1993 Mazda RX-7 Retro Review | A '90s hero turns 25

Boom times build interesting cars. In the late 1980s, Japan was flush with capital, and automakers spent like the party was never going to end. Suddenly building the third-generation RX-7 — the world's most advanced twin-turbo rotary sports car — seemed like the most natural thing a small car company hailing from Hiroshima could do. On this side of the Pacific, however, there was no context for the sudden influx of unusually tricked-out Japanese hardware flooding American dealerships. And none of the Japanese sports cars of the era was more unusual than the FD-generation Mazda RX-7, imported from 1993 to 1995 (and continuing on in Japan until 2002). Although the island nation's economy was headed on a downward spiral by the end of 1990, Mazda was in no position to pull back and walk away from the development dollars that had already been spent on its latest RX-7. As a result, Americans were able to briefly bask in the glow of one of the most unique engineering experiments ever unleashed on unsuspecting buyers. For its time, the Mazda RX-7 was a spaceship. With fluid lines that screamed "exotic," it joined the NSX in showing that supercars didn't have to have European blue blood running in their cooling systems to elegantly snag eyeballs. The twin-rotor, 1.3-liter 13B-REW situated behind the RX-7's front axle revved all the way to 8,000 rpm on its quest to produce 255 horsepower and 217 pound-feet of torque, with a pair of sequential turbos handing boost duties back and forth around the 4,500 rpm mark. A five-speed manual gearbox was standard with the FD (a four-speed automatic was optional), as was a curb weight in the neighborhood of 2,800 pounds — nearly 500 lbs less than the contemporary Toyota Supra. Significant figures for the era, to be sure. While they might pale in comparison to the average sports car today, slide into the RX-7's cockpit and drive the car, rather than just crunch the numbers. You'll quickly discover what can be accomplished when the company that engineered the Miata pulls a full John Hammond and "spares no expense" developing a world-beating sports car platform. The 1993 Mazda RX-7 I've been loaned from Mazda's classic collection is an R1 car, which means tighter suspension tuning, a few cosmetic upgrades, and a Competition Yellow paint job.