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Mazda hard at work on Skyactiv 2 engine technology

As Mazda continues the current rollout of its still-new Skyactiv technology, the automaker is already looking at improving its family of engines for even better fuel economy and emissions reductions. Automotive News reports that with stricter fuel economy and emissions regulations planned for 2020 and 2025 in Europe, Mazda will likely release engines with next-generation Skyactiv 2 technology by the end of this decade, and Skyactiv 3 units just five years later.
The latter is expected to focus on improved engine cooling and lessening energy losses, but the big news in AN's report is that the next-gen Skyactiv 2 engines will use Homogeneous Charge Compression Ignition, or HCCI. This type of ignition is very similar to how a diesel engine operates (with high compression and using the compression stroke for fuel combustion rather than spark plugs), a method said to provide a cleaner and more efficient fuel burn - to the tune of a 30-percent improvement in fuel economy compared to current Skyactiv engines. Other automakers, including Hyundai, have already announced they are developing HCCI powerplants with similar technology and characteristics, so Mazda likely won't be a lone wolf here.
Equipped with HCCI technology, Mazda figures to be able to compete with larger automakers in terms of fuel economy and emissions without resorting to hybrid powertrains, continuously variable transmissions or automatics relying on more forward gears (eight or more) for optimal efficiency. Some of the challenges of HCCI, according to AN, include the need for better engine cooling, risk of misfire at high and low rpm and uneven engine performance based on fuel properties.

2020 Mazda MX-5 Miata RF Automatic Road Test | Cue the sad trombone

Somewhere in Hiroshima, a parade of nearly finished Miatas glides along a track waiting to receive their beating hearts, the powertrains that'll let them ply their road-carving talents the world over. One – let's call him Fred – is eager to begin his new life as a 2020 Mazda MX-5 Miata, bringing joy to his future owner and just generally being awesome, even if the RF power targa-ish roof that's already been applied to him is a tad dweeby. Visions of hairpins and power slides and expertly executed heal-toe downshifts dance in his head Â… and then it happens. He is given the one thing every new Miata dreads: an automatic transmission. Poor guy. This will not, entirely at least, be yet another diatribe in the ongoing Quixotic campaign to Save the Manuals(!). Automatic transmissions can be quite good and even beneficial in sports cars, especially on the track where removing the need to operate a clutch and expertly execute those heel-toe downshifts lets you better focus on the steering, what the chassis is doing and just going faster. That the computers can shift quicker than you can is another obvious advantage. The trouble with the Miata, and why Fred is now shuffling off the line like George Michael away from the Banana Stand, is that the Mazda six-speed automatic just isn't appropriate for a sports car. The automatics in the rest of Mazda's fleet are actually quite excellent, delivering superior response than rival transmissions, and delivering comparable fuel economy despite possessing fewer gears. However, what works well in a compact crossover like the CX-5 or CX-30 is not necessarily appropriate for a sports car like a Miata. Unlike the dual-clutch transmissions or even some sport-tuned conventional automatics of various performance-oriented cars, this one doesn't downshift adroitly when braking into a corner, anticipating your imminent need to get back on the power. The plastic paddle shifters lack the reassuring, mechanical feel of the best examples, and then don't produce quick-enough reactions from the transmission when up- or downshifting. I found using the shifter itself, which is at least oriented the correct way – with downshift forward and upshift rearward – to ultimately be more rewarding as it has a more involving action to it. Still, it's nothing compared to the solid, snick-snick action of the six-speed manual.

Watch divers pull 1973 Ford Mustang Mach 1, Mazda RX-7 from a river

It’s like the ultimate barn find, only swap out the relatively ideal dry confines of a barn for a watery grave. Adventures with Purpose, a YouTube channel devoted to the exploits of a group of divers in Oregon that specializes in pulling submerged cars from the water, recently found six vehicles in the Tualatin River, near Portland. The most notable finds? A 1973 Ford Mustang Mach 1 fastback and a Mazda RX-7 sports car, plus a Chevrolet LUV pickup, which is not shown being pulled from the water. As you might expect, neither are exactly in top condition, with the badly rusted Mustang basically disintegrating into scrap pieces as itÂ’s pulled onto a flatbed truck parked on a boat ramp. The RX-7, meanwhile, is caked with mud, its windshield and roof crumpled, but itÂ’s basically intact. A hat tip goes to CarBuzz for spotting the videos. The divers use inflatable salvage bags to help raise the vehicles. They removed the MustangÂ’s rusted and encrusted V8 first — the '73 model came with either 302 or 351 engines — and had to pause to remove some of the thick mud that had built up inside the car. Other things they found from both pulls include an old sledgehammer, a stop sign and a rusted Washington state license plate. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. The crew say they received a call from someone who told them theyÂ’d find plenty of vehicles in the river. The whole Mach 1 salvage operation took two days. “A lot of you are going to be a bit upset at how destroyed the Mustang Mach 1 became after we tried removing it from the river,” the team wrote in its description. “In our defense, there was an extra 8,000 pounds of mud inside the car, along with the Mustang being underwater in the river for over 40 years.” The Adventures with Purpose team says it has recovered 326 cars, six guns, two bodies and a tractor, among things. Related Video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.     Ford Mazda Coupe Performance Classics