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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.

More head-up displays are coming to a dashboard near you

With the exception of Apple products — $1,000 for a freakin' smartphone? — one great thing about tech is you typically get more for your money with each passing year. This is particularly true with automotive tech: Features like driver assists and surround-view cameras that were once exclusively available in luxury vehicles now come standard even on some economy cars. The same thing is slowly happening with head-up displays (HUD). For example, the 10-inch HUD in the 2018 Toyota Camry is one of the largest and best HUDs I've seen in any car. And a big improvement on the much smaller HUD in the latest Toyota Prius. Mazda is another mainstream brand that offers HUDs in several of its vehicles. But instead of embedding expensive components in the dash and using a special windshield, the HUDs in the Mazda3 and Mazda6 use a thin plastic lens that folds down when not in use. MINI has a similar solution, but this low-cost approach has limits in terms of size and position of the images compared to traditional HUDs that use the windshield as a screen. We're also starting to see similar lens-based aftermarket options that can be added to any car. Last year I tested a portable HUD called Navdy that taps into a car's OBD-II port to provide info on speed and RPM and uses built-in GPS and Google Maps to show the surrounding area, display speed limits and route you to your destination. Navdy also connects to an Android or iOS smartphone via Bluetooth to display data from phone calls, texts and music playing on a connected device, and it's simple to use and easily visible in almost any lighting condition. While Navdy is still available online, late last year the company ran into financial difficulties, and product support has been halted. I recently tested a new portable HUD called Hudly that's not quite fully baked and falls short of Navdy because it doesn't tap into an OBD-II port. Since a companion smartphone app for Hudly isn't scheduled to launch until next month, for now it only mirrors what's on a smartphone. So it can be used for nav and other apps, and its features are very limited. Between automakers adding HUDs in more reasonably priced cars and the aftermarket filling in the gaps for existing vehicle owners with add-ons, the technology is becoming more prevalent and affordable. And it's also getting better.

Miata driver pulls off hilariously diabolical move in fender-to-fender racing

Racing is all about finding the little advantages over competitors that allow you to get ahead. Sometimes those are legitimate means - like being able to take advantage of a better line through a corner - and other times drivers get a little more creative for a leg up over opponents. Sometimes things might even go a little too far. Case in point: just watch the opening of this Mazda MX-5 Cup race from Silverstone in the UK.
According to the YouTube description, we're riding with James Rogers in this video, and he appears to be pretty talented behind the wheel. Rogers has a great start from fifth that has him in third within just a few corners. He starts stalking the top two drivers, who are already having a fantastic race themselves, but then we see that the person in second is clearly willing to do whatever it takes to win. Just watch the video, and you'll see what we mean. Bravo (?) to that racer for some very quick, albeit fiendish, thinking.