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What a 181-horsepower 2019 Mazda MX-5 Miata means for us, and you

Last month, we reported on a VIN filing dug up by Road & Track that showed that the 2019 Mazda MX-5 Miata's 2.0-liter Skyactiv-G engine would get a power bump, from 155 to 181 net horsepower. As for how the 2019 Miata would make that extra power, we heard rumors it'd utilize a new cylinder head allowing higher revs, accounting for that extra power. Now we have what appears to be a leaked document from Mazda Canada showing exactly where that extra power comes from. According to the document posted at Miata.net (registration required to see the image), Mazda will alter camshaft lift and valve size on both the intake and exhaust side, fit freer-flowing exhaust, and smooth and enlarge the piping on the air intake side. There are also internal engine modifications: lighter pistons with lower crowns for better swirl in the combustion chamber, lighter connecting rods, and a crankshaft balanced for higher-RPM operation. All those extra revs mean extra vibration and noise, so Mazda will ditch the single-mass flywheel for a "low-inertia" dual-mass flywheel – which will attempt to find a nice balance between DMF damping action and SMF directness. Overall, it's a pretty serious engine revision with some driveline changes that will heavily affect the driving characteristics of a fantastic driver's car. Contributing Editor James Riswick and Senior Editor Alex Kierstein, both well versed in Miatas past and present, are here to analyze what this could mean for the little roadster. James Riswick: I don't know much about them lighter crank combustion rods, but I for one welcome the news of more power to the Miata. The jump from 155 to 181 seems like a very prudent Mazda-like thing to do, accomplishing that task through various aforementioned technical wizardry as opposed to slapping on a turbocharger, exclaiming "yee-hah" and calling it a day. Alex Kierstein: That's true. I'm wary of additional power, but you do make a good point that at least this is the right way to do it. Going all-motor will keep the bright responsiveness of the engine intact. But higher revs might make power delivery peakier. Frankly, I'd be ok with moving the torque and horsepower peaks up a bit in the rev range, making it a bit more work to access the engine's sweet spot. The dual-mass flywheel should also help if low-end torque suffers, so less stalling in traffic. JR: Did wonders in the 911 and 718s.

2021 Mazda CX-5 Review | What's new, safety, prices and pictures

If you're looking for a compact luxury SUV but are iffy about the higher price tags and running costs (quite understandably), the 2021 Mazda CX-5 is a perfect alternative. It all starts with its elegantly sporty styling and carries inside where its handsome design and plush materials are a clear step up from others at its price point. Then, when you're behind the wheel, the CX-5 impresses with engaging driving manners that we've routinely described as being indicative of a "budget Porsche." Its available turbocharged engine even has as much or more power as several similarly sized luxury crossovers. Now, if the CX-5 can be credibly considered an alternative to luxury vehicles, it's safe to say that it also stands tall against non-luxury choices like the popular Honda CR-V and Toyota RAV4. Certainly, its style, plush interior and driving manners count for a lot. It also gets a new infortainment system for 2021, addressing one of this Mazda's few low points. It's still smaller than those top competitors, particularly in the cargo area, so if max utility and versatility are a priority, it may not be the best choice. Fashion and function rarely go hand-in-hand, and the CX-5 is no exception. What's new for 2021? The CX-5 gets a much-needed new infotainment interface for 2021. It's the same unit found in the smaller CX-30 that dramatically improves upon Mazda's previous interface with its large 10.25-inch display, better graphics and menu structure, and revised controls on the center console. Many will still prefer a touchscreen interface, but this is no longer the potential deal breaker it once was. Another addition for 2021 is the CX-5 Carbon Edition, pictured below, which adds black trim and wheels to an exclusive Polymetal Gray exterior, as well as a red leather interior.  What's the CX-5 interior and in-car technology like? The CX-5 boasts a handsome, upscale design with materials to match, exuding a premium vibe that none of its direct competitors can match. Its top two trim levels, Grand Touring Reserve and Signature, have seats that are heated all around and ventilated up front, covered in high-quality leather with contrast French stitching. There's stitching on the dash, too, though it goes through rubbery stuff. The padded and stitched pleather on the doors and center console are a nicer touch, as is the subtle dark wood and alloy trim — especially the air vents that seem to jut out from within the dash.

Will Mazda sell diesel hybrids in Japan in 2016?

Could the "Zoom Zoom" automaker start making hybrids that go "glug glug glug"? Mazda, known for its fuel-efficient Skyactiv engine line, will be the first Japanese automaker to make a diesel-hybrid vehicle for Japan and Europe. According to the Yomiuri Shimbun, Mazda may start making its oil-burning hybrids as soon as 2016, and the powertrain may reach fuel efficiency levels of as much as 95 miles per gallon (one the more lenient Japanese driving cycle). That'd make such a vehicle line about 30 percent more fuel-efficient than standard diesels and about eight percent more fuel efficient that the Toyota Prius C compact hybrid (known as the Aqua in Japan). Mazda has been dismissive of hybrid and electric powertrains, instead focusing on Skyactiv technology to maximize fuel efficiency from conventional gas-powered engines. Diesel powertrains account for about half of the light-duty vehicles sold in Europe each year, while Japan's diesel sales of 76,000 vehicles last year were about three times as many as were sold there in 2012. In January, Mazda said that it would delay the introduction of its Skyactiv-D diesel engine from what was to be a spring 2014 debut. The reason was to fine-tune the engine's performance/fuel economy balance. Mazda representatives didn't immediately respond to a request for comment from AutoblogGreen about the diesel hybrids.