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Mazda files patent applications for inline-six technology, new transmission

We've known for some time that Mazda is one of the OEMs getting back on the inline-six engine bandwagon, and a report from Japan gives us a glimpse of some of the automaker's plans. Mazda has filed patent applications for both new exhaust components (depicted with an inline-six) and a new eight-speed automatic transmission.  The news comes from a blog called T's Media (fire up Google Translate), which located the new hardware in two separate fillings, one for exhaust system components and one for the new transmission.  Mazda's lineup has been exclusively powered by four-cylinder engines since the demise of the last-generation CX-9, which utilized a 3.7-liter V6 sourced from Ford. Since, Mazda has relied on turbocharging to get more power out of its SkyActiv four-pots, but changes may be coming. Prior reports have indicated that Mazda wants a new, larger engine architecture to power vehicles built on a new, larger platform. This new chassis is expected to accommodate longitudinal, rear-wheel drive powertrains, which could spawn larger crossovers and SUVs. It could also potentially underpin a new rear-wheel drive coupe, if Mazda decides to go that route.  While the inline engine itself is not news, what we're seeing here might actually be hints as to Mazda's approach to the next generation of its SkyActiv engine architecture. Mazda's exhaust patent seems to describe a scalable — perhaps even modular — setup intended to be used with inline and potentially even V-engines.  "Provided is an engine exhaust structure capable of securing exhaust efficiency while reducing the size of the engine by changing the structure of an exhaust port," a translation of the patent application's introduction says. "[T]here has been proposed a technique for collecting exhaust gas discharged from each cylinder inside a cylinder head without using a separate exhaust manifold with the aim of downsizing the engine." In other words, Mazda is looking for ways to make its future engines more compact, and the strategy detailed here is the use of an integrated exhaust manifold, similar to what other automakers (such as Honda and Ford) have utilized on their smaller-displacement turbocharged engines. The sketch above of an inline-six engine with just two exhaust ports illustrates this concept.  The eight-speed transmission, while noteworthy in its own right as Mazda currently relies on aging six-speeds, doesn't seem to offer us anything particularly game-changing.  Related Video:

2020 Hyundai Palisade vs. Ascent, Pilot, Highlander and CX-9: How they compare on paper

We've finally had our first drive of the 2020 Hyundai Palisade and found it to be well-equipped for sales success. It nails the formula that some of the most successful three-row crossovers have, the aforementioned seating capacity, high driving position, all-wheel-drive availability and a V6 engine. Of course, it also offers a unique and menacing-looking exterior that ought to stand out in the parking lot. To dig deeper into how it compares to other three-row family crossovers, we've fired up the old Autoblog Comparo Generator 3000 (™) and lined the all-new 2020 Palisade up against the 2019 Subaru Ascent, 2019 Honda Pilot, 2019 Toyota Highlander and 2019 Mazda CX-9. Besides being two of last year's best-selling three-row SUVs, the Pilot and Highlander are also the closest in general concept to the new Palisade, while the Ascent and CX-9 also offer a comparable turbocharged four-cylinder powertrain. The CX-9 is also one of our favorites in the segment, and the Ascent is one of the newest entrants on the scene. There are of course numerous other worthy contenders, including the Chevrolet Traverse, GMC Acadia, Volkswagen Atlas, Nissan Pathfinder, Hyundai Santa Fe and the best-selling Ford Explorer, so if you want to see their specs, check out the Autoblog compare tool. Performance and fuel economy The Subaru, as is so often the case, is the oddball. It has a 2.4-liter turbocharged horizontally opposed four-cylinder (aka a flat-four or a boxer-four) that produces a comparatively modest horsepower rating, but a greater amount of torque. That's typical for turbocharged engines such as Mazda CX-9's turbo inline-four that produces 250 horsepower on premium fuel (227 hp on 87 octane) and 310 lb-ft of torque (the VW Atlas also offers a base turbo-four). The Hyundai, Honda and Toyota, meanwhile, go about it the old-fashioned way, with naturally aspirated V6 engines displacing 3.8 liters in the Hyundai, and 3.5 liters with the two Japanese crossovers. The Toyota and Hyundai lead the pack in horsepower, with the Toyota taking top honors by just 4 horses. The Honda weighs less, though, so their acceleration should be comparable. The Subaru actually accelerates on par with its V6-powered competitors, probably due in part to its continuously variable transmission. The fuel economy trophy goes to the Ascent.

Next Mazda MX-5 Miata to weigh a ton(ne), literally

Looking at recent spy shots of the fourth-generation Mazda Miata, it's obvious this sporty little roadster will grow in size compared to the current model, but it's also going on a diet. At the Tokyo Motor Show, Auto Motor und Sport sat down with Mazda executive Kiyoshi Fujiwara, who gave a little more insight into the Miata's redesign.
Fujiwara said that they're aiming for a curb weight of a tonne (metric ton), which is 1,000 kilograms or right around 2,200 pounds, for the next-generation Miata. This would make the roadster at least 300 pounds lighter than the current NC Miata, but still about 200 pounds heavier than the original NA.
There is no indication as to how Mazda will go about removing that much weight from the bigger car, but with as popular as the power retractable hard top (PHRT) model is on the current car, the new Miata may ditch this feature to lose its weight. Improving the power-to-weight ratio appears to be a key goal of the Mazda team, so we also wouldn't be surprised to see a more powerful engine underneath the longer hood.