1985 Mazda Rx-7 Gsl-se, Rx-3, Rx-2, R100 on 2040-cars

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2014 Mazda CX-5 with 2.5-liter Skyactiv engine

Back in October, we compared the relative merits of two new and very good small crossovers: the 2013 Ford Escape and 2013 Mazda CX-5. The CX-5 we tested then had Mazda's 2.0-liter Skyactiv-G engine under its hood, and it managed to just edge out the EcoBoosted Ford despite being down by some 23 horsepower and 34 pound-feet of torque. Had it been available, the 2.5-liter Skyactiv engine that we recently had the opportunity to try out in the 2014 Mazda CX-5, it may have made that comparison even easier to call in the Japanese CUV's favor.
Clearly, if you're in the market for a reasonably sized crossover, the CX-5 should, at the very least, be on your test-drive list. The new engine offering will let buyers opt for a stronger powerplant, with 184 hp and 185 lb-ft on tap. On our second day in Austin's Hill Country - the first was spent quick-spinning the 2014 Mazda6 i Sport, you'll recall - we covered a couple of hundred miles and put the new CX-5 through its paces; here's what we turned up.
Driving Notes

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's product roadmap after Skyactiv-X: diesel, rotary, hybrids, even EVs

When we first heard that Mazda had cleared the major hurdles on gasoline compression ignition, and were just tidying up the details with clear production intent, the first kneejerk thought was: That's it for Mazda's consumer diesel. In particular, the Skyactiv-D that was intended for sale in the U.S., only to be delayed for years by various regulatory roadblocks and other issues that Mazda is frustratingly (but understandably) vague on. At least, it'd die out at some point down the road once Skyactiv-X was widely available. It turns out that's not the case at all. Mazda will adopt an approach that becomes more and more electrified and diverse the closer you get to 2035. But internal combustion will play a deep and central role up to that point, and probably beyond. Before we get to what those different powertrains, diesel and electrified, will look like down the road, let's stop and think about Mazda's philosophy. It couldn't be more different from the approach of most manufacturers that are currently producing BEVs and hybrids, which are heavily incentivized by both the automakers and the government, both state and local, depending on the locality. Even with all that cash on top of the hood, the market penetration of electrified vehicles is low. Mazda's too small to lose money paying people to drive EVs and hybrids. Its risky solution (which is plucky, but has had mixed results) is to simply improve the internal combustion engine. It's achieved the best fleet average fuel economy in the U.S. already, using a range of direct-injection gas engines that are mostly naturally aspirated. A few tiny nods to electrification have been introduced, like i-eLoop regenerative braking and the Demio EV (a Japanese-market, last-generation Mazda2 with a 20kWh battery that was tested with a tiny rotary engine range extender). But the focus is on combustion, not electricity. And that focus isn't going away anytime soon. Mazda believes that pure gasoline, gasoline hybrid, and gasoline PHEV vehicles will remain the vast majority of vehicle sold through 2035. At that point, Mazda forecasts, BEV and fuel cell vehicles should make up about 15 percent of the total of Mazda's lineup. The remaining 85 percent will utilize some form of internal combustion engine. Now, that includes hybrids and even a small number of CNG/LPG cars. And these are global numbers, as well. There may be even fewer fuel cell and CNG/LPG vehicles sold here than abroad.