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Mazda2 with extended-range hybrid rotary tech shown

Every story dealing with a new rotary engine from Mazda lands in a different place on the matrix of possibilities between "Coming soon!" and "Never gonna happen!" In 2011 it was speculated that the rotary engineering program would be shut down with the demise of the RX-8, in 2012 the program was still alive and taking lessons from the SkyActiv engines, in August 2013 a Mazda insider said a rotary engine called 16X would be here in two years, in November the CEO said the only way we'd ever get a new rotary is if Mazda could sell 100,000 of them per year. Meaning that, for the moment, you can forget about it.
And yet, last month Mazda was putting journalists in a Mazda2 RE Range Extender, an electric car using a 0.33-liter rotary to power its lithium-ion batteries when the charge runs down. With a 75-kilowatt, 100-horsepower electric motor turning the front wheels, the Wankel generator and its 2.6-gallon gas tank living under the trunk double the range of the electric-only Mazda2 to 250 miles.
There's been talk of using a rotary to assist an alt-fuel vehicle for at least seven years, with Mazda pairing an electric motor with a rotary that ran on gas and hydrogen in a Mazda5 in 2007. Since then, almost all of those stories debating its return or demise also spoke of the oddball motor's advantages, such as compact size and ability to run on various fuels, as an aid in an unconventional powertrain.

This map reveals the cleanest vehicles based on location

Naysayers love to point out how dirty the electricity grid mix is when it comes to charging electric vehicles. Curmudgeons are eager to jump into any conversation about EVs to enlighten the lucky listeners about how plug-in cars contribute to pollution, sometimes even throwing in a dash of climate-change denial for good measure. (Thanks, buddy. Pray, tell me more about the plight of oppressed SUV owners.) Unless someone buys an EV just because they think they're cool (which, yeah, they often are), they probably have at least a passable understanding of their environmental pros and cons. As many EV owners are already aware, location has a lot to do with any particular plug-in car's carbon footprint. Still, there's always more to know, and knowledge is not a bad thing, especially if one uses it to do the right thing. That's why this handy-dandy map from Carnegie Mellon University is so interesting. CMU researchers have compiled information about the lifecycle greenhouse gas emissions of various EVs based on where they're charged, as compared to gasoline-powered vehicles. The researchers looked at the Nissan Leaf, Chevrolet Volt, and Prius Plug-In Hybrid versus the gasoline-dependent Toyota Prius hybrid and the stop-start-equipped Mazda3 with i-ELOOP and compared grams of CO2 emitted per mile. CMU takes into account the grid mix, ambient temperature, and driving patterns. CMU takes into account the grid mix based on county, as well as ambient temperature and driving patterns in terms of miles traveled on the highway or in the city. For instance, if you drive a Nissan Leaf in urban areas of California, Texas, or Florida, your carbon footprint is lower than it would be if you were driving a standard Toyota Prius. However, if you charge your Leaf in the Midwest or the South, for the most part, you've got a larger carbon footprint than the Prius. If you live in the rural Midwest, you'd probably even be better off driving a Mazda3. Throughout the country, the Chevrolet Volt has a larger carbon footprint than the Toyota Prius, but a smaller one than the Mazda3 in a lot of urban counties in the US. The Prius and Prius Plug-In are relatively equal across the US. Having trouble keeping it straight? That's not surprising. The comparisons between plug-in and gasoline vehicles are much more nuanced than the loudest voices usually let on.

Toyota Yaris iA, Mazda CX-3 sales show crossover formula isn't an automatic win

While 2017 was another watershed year for crossovers, in one interesting case, a crossover had its lunch eaten by its sedan counterpart. In the past year, Toyota sold nearly 36,000 Yaris iAs, a sedan that is identical to the foreign-market Mazda2 in everything but Toyota's ugly front bumper. In the same time frame, Mazda sold just over 16,000 CX-3s, a subcompact crossover based on the Mazda2. Not only that, but the Yaris iA saw an increase of around 8,000 units over 2016, and the CX-3 sold about 2,000 fewer units than in 2016. View 29 Photos There are a few reasons this is surprising. First of course is that the crossover market is surface-of-the-sun hot right now, so much so that primarily crossover-building brand Subaru saw its best sales year ever last year. Even Mazda's other crossovers, the CX-5 and CX-9 saw better sales in 2017 than in 2016. But on paper, the CX-3 has a number of advantages compared to the Yaris iA. The CX-3 has a larger 2.0-liter four-cylinder that makes about 40 more horsepower than the 1.5-liter engine in the Toyota. Also, while the cargo area behind the rear seats in the CX-3 is about one cubic foot smaller than the iA, it has the added flexibility of being a hatchback, and thus having more capability when it comes to large, bulky items. And of course, the CX-3 is quite a shapely machine compared with the awkward, angry-looking iA. That's not to say the iA doesn't have any of its own advantages. It gets 3 more mpg in the city and 6 more on the highway than the CX-3. It also costs roughly $3,000 to $4,000 less than a CX-3 and can be found at more dealers than the Mazda. But it's still surprising that a car, especially a sedan, can outsell a mechanically very similar crossover. Apparently the formula of adding more ground clearance and plastic fenders isn't foolproof. Then again, maybe it's not such a big deal to Mazda, since the CX-3's total sales were just over a tenth that of the Mazda CX-5. Related Video: