1991 Mazda Rx-7 Convertible Convertible 2-door 1.3l on 2040-cars

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Mazda RX-Vision GT3 concept slinks into Gran Turismo Sport next year

The World Final of the FIA World Tour in Gran Turismo Sport just went down in Monaco, and Mazda was there with a couple of big announcements. The first is that the Hiroshima-based automaker will become an official video game partner next year, 2020 also happening to be Mazda's centenary year. The second reveal was a sketch of the Mazda RX-Vision GT3 Concept, a GT3-class racer based on the RX-Vision Concept shown at the 2015 Tokyo Motor Show. Game creator Kazunori Yamauchi and Mazda's North American design chief Julien Mountousse wouldn't get into details, such as how close the final car would look to the drawing or whether there'd be a rotary engine under the hood. Yamauchi would only say Polyphony Digital is modeling the car right now, and Montousse added that designers wanted the Vision GT3 to be a car players really wanted to drive. As much of a looker as the race car is, it's clear some changes will be in order; the front fenders, roof, and rear wing are nearly on the same plane. The brunt of aero accessorizing happens down low, a massive front splitter leading to extended side sills with vertical planes, and what must be a massive rear diffuser with an even larger set of vertical planes. It's hard to tell by the drawing, but it looks like the rear wing supports angle out from the body to merge with the end plates. When the RX-Vision GT3 shows up to contest the 2020 FIA-certified championships in GT Sport, it will join the Atenza Gr.3 as Mazda's only GT3-class car in the game — the Atenza effectively a near copy of the Speed Source Mazda6 that raced in the U.S. Grand-Am series until a couple of season ago, but with four doors instead of two, and a gas engine instead of diesel. Mazda didn't qualify for the GT Sport Manufacturer's Cup this year, they'll be hoping their team can change that next year with the RX-Vision GT3 since, as Montousse said, "That car has all the Mazda spirit in it." There will be more coming from Mazda in GT Sport as well. Word is that the official partnership won't stop at a single new car, and Yamauchi remarked on the partnership, "I think we can keep our expectations high for next year." Fast forward to 17:50 in the video to see the sketch presented, or roll back a bit to 14:00 to listen to comments from Mazda global head of design Ikuo Maeda.

Mazda patents show rotary engine for range-extended EV

Two years ago, Mazda introduced a fascinating range-extended electric car called the Mazda2 RE Range-Extender. It took an electric Mazda2, and dropped in an itty-bitty 330cc rotary engine. It wasn't the rotary-powered sports car we had hoped for, but it seemed like a unique way to keep the quirky engine alive and kicking. But not long after the car's reveal, it seemed to disappear. Now the basic idea has resurfaced with a few modern updates in a couple of US patents. The first patent is pretty straightforward and describes a range-extended EV similar to the BMW i3. At the front is an electric motor driving the front wheels. At the back is an internal combustion engine that powers an electric generator. In the middle is a lithium-ion battery for storing and delivering electricity. It's the same set-up as that Mazda2. The second patent is for an engine start-and-stop system, but specifically for rotary engines. The system is designed to shut off a rotary engine when not needed, much as modern piston engines do. It also stops the rotor in a position that closes the intake port to ensure no fuel or exhaust emissions slip out through the intake tract. This is necessary since there are no valves in a rotary, and air and exhaust come through ports that are "opened" and "closed" by the rotor itself. The patent also describes the possibility of firing a spark plug after the fuel has been cut to eliminate any leftover fuel emissions. This system would theoretically improve a rotary engine's fuel economy and emissions significantly, which would be a boon as those are two of the rotary's major weaknesses. The rotary-engine patent also includes the same range-extended powertrain drawing as the first patent. It's there as a description of a possible application. And in such an application, where the rotary wouldn't have to run all the time, the system could take advantage of the rotary's inherent strengths. Weight can be kept low thanks to the engine's small dimensions, which should help in keeping the car sprightly and efficient. Rotaries are renowned for smoothness, too, so it shouldn't need too much refining and sound deadening, the latter of which adds more weight. The small size would also help with packaging, leaving more space for people, cargo, or possibly batteries. And since it has been patented, the company may be looking to bring the system to market.

Next-gen Mazda MX-5 could use carbon fiber to cut weight

The current Mazda MX-5 Miata has only been out for a few years, but the automaker is allegedly looking for ways to lighten the next one. According to a report from Autocar, Mazda is looking to carbon fiber to help the next-generation MX-5 cut weight and use a smaller engine. Despite having more safety features, modern amenities, and a stiffer body, the current MX-5 is the same size as the original sports car from 1990 and weighs less than its immediate predecessor. In a recent interview with Autocar, Nobuhiro Yamamoto, head of the Miata program, revealed that the next generation of the Miata will probably stay the same size, but could be even lighter thanks to the utilization of carbon fiber. The current MX-5 uses high-strength steel and aluminum, and Mazda doesn't use carbon fiber in any of its cars. Carbon fiber is expensive to incorporate into road-going vehicles, and so Yamamoto notes that Mazda has been hard at work making it more affordable. A lighter car could result in a smaller engine, Yamamoto said. In the US, the MX-5 comes with a 2.0-liter four-cylinder engine that makes 155 horsepower, while the Japanese and European version comes with a 1.5-liter, 130-hp engine. A smaller engine would make the sports car even lighter. It's unknown at this time if the automaker is collaborating with another automaker or a supplier to make produce carbon fiber, or if it'll make it in-house. There's no word on how much carbon fiber the next MX-5 will wear or how it will affect the sports car's price. Autocar reports that the next MX-5 won't arrive anytime before 2021, which could make the ND MX-5's lifespan an unusually short five years long. With cars getting heavier, it's nice to hear that Mazda is working on finding a way to make its lightweight sports car even lighter. Related Video: News Source: AutocarImage Credit: Mazda Mazda Convertible Coupe Lightweight Vehicles