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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.

Mazda MX-30 crossover is brand's first EV, with sporty, coupe-like looks

TOKYO — Mazda's first production full electric car has finally been revealed, and it's called the MX-30. And the name and shape point to it being a sporty, fun EV, though we're still waiting for more details. Starting with the name, the 30 designation gives you an idea of its size, which is similar to the upcoming CX-30, itself close to the Mazda3 hatchback. And importantly, it has the MX prefix, which is only used on Mazda's sporty cars, typically with piston engines. The RX prefix is for sporty rotary cars. So clearly the aim of this car is to be fun. Its shape points to sportiness, too. It has a fastback roofline that is coupe-like. In fact, you could arguably call this a coupe, since it uses the same type of rear half-door arrangement found on the RX-8 and Saturn Ion coupes. And of course it was used on the less coupe-like Honda Element and Toyota FJ Cruiser. The roof also is available in a contrasting graphite color. The lower half of the body is simple, and a bit boxy with the blunt nose. That nose features a much smaller rendition of Mazda's pentagonal grille, and the grille blends into the headlights. And like all crossovers, the MX-30 has big plastic fender flares. Inside, the MX-30 features a typically minimalist, modern dashboard that's low and wide. New for the MX-30 is a touchscreen display for climate control functions, and it sits on a "floating" center stack and console. The cabin features unique materials such as fabric made from plastic bottles, and cork in the center console. That cork is made of leftovers from a cork stopper company, and it's a nice throwback to Mazda's origins as a cork producer. While we get a great look at the MX-30 inside and out, Mazda was light on critical details for an electric car: power and range. Both are mysteries, though it seems it is a single-motor vehicle, and so is likely front-drive only. It does feature an electric version of G-Vectoring Control, which is the system that reduces torque with steering input to shift weight forward for a larger front contact patch and more eager turn-in. The battery, located in the floor of the car, is cooled with a refrigerant, so it isn't simply air-cooled, and the car will be compatible with DC fast charging stations. Mazda also didn't provide an on-sale date for the MX-30. We expect it will be available sometime in the next year. Whether it will come to America is also an open question. But as a stylish crossover, it seems like it would be an EV with U.S.

Sunday Drive: Tracking Tokyo's top performers

The big news of the week mostly came from Tokyo. All of Japan's biggest automakers made waves at the Motor Show, but the winner of the event has to be Mazda. The big Vision Coupe and little Kai Concept stole the show, won our hearts, and earned a ton of attention for the automaker. We can't wait to see how these two concepts impact the design, engineering, and technology of future production models. Take a look at our mega image gallery post below to see everything in high-resolution glory. Interestingly, the single biggest click-magnet of the 2017 Tokyo Motor Show was the BMW X2. We shouldn't be surprised. Crossovers of all shapes and sizes dominate the American marketplace, and the X2 is clearly the most attractive of BMW's even-numbered, coupe-influenced X models. Plus, it's headed for production, with sales starting in the spring of 2018. Moving past the Tokyo Motor Show, Autoblog readers are apparently very interested in the 2019 Chevy Camaro. Spy shots of just about every iteration of Chevy's muscle car lit up the 'net last week, leaving us very interested in seeing what's hiding behind all that camouflage. As always, tune in to Autoblog next week for a front-row seat to all the happenings worth following in the automotive industry. 2017 Tokyo Motor Show | Mega Gallery Mazda Vision Coupe | Tokyo Motor Show's big, sensuous 4-door Mazda Kai concept hints at a more muscular, refined Mazda3 2018 BMW X2 crossover revealed, adorned in gold and silver 2019 Chevrolet Camaro: 1LT, SS, ZL1 all spied with updated styling