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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.

Mazda and Isuzu to collaborate on a new pickup truck

After decades, Mazda has finally untangled itself from its relationship with Ford. The last vestige of that partnership is the BT-50, a rebadged version of the global Ford Ranger pickup truck. Once the BT-50 ends production, Mazda has announced that it will collaborate with Isuzu to develop its next generation of pickup trucks. The BT-50 was co-developed with Ford's Australian division. In their current iteration, the BT-50 and its Ranger twin were never on sale in the United States. Mazda's last pickup in the US was the B-Series, itself also a rebadged version of the old Ford Ranger. Isuzu pulled out of the US passenger vehicle market in 2009, although it still sells commercial vehicles here. Isuzu, continuing a long and complicated relationship with General Motors, co-developed the diesel engine that currently powers the Chevrolet Colorado and GMC Canyon. In select markets, Isuzu sells a rebadged version of the Colorado as the D-Max. Details on the Mazda/Isuzu tie-up are scarce. A single press release simply says "Isuzu will produce next-generation pickup trucks for Mazda, based on Isuzu's pick-up truck model." This isn't the first truck collaboration between the two companies. Since 2004, Mazda has sold the Titan, a rebadged version of the Isuzu Elf commercial truck. The Elf is sold in the US as the Isuzu N-Series. Those in the US hoping for a new competitor in the midsize-truck segment shouldn't get their hopes up for the new truck. There are currently no plans to bring them here. There is hope, though, that Ford will bring the Ranger replacement stateside sometime in the next few years. Related Video: News Source: MazdaImage Credit: WILLIAM WEST/AFP/Getty Images Isuzu Mazda Truck

Future Classics, Acura Integra Type S and Cadillac Escalade-V | Autoblog Podcast #759

In this episode of the Autoblog Podcast, Editor-in-Chief Greg Migliore is joined by Associate Editor Byron Hurd. They jump right in with some news that Toyota may revive the Land Cruiser in the U.S., followed by rumors of a Nissan GT-R successor. From there, it's on to official confirmation of the Acura Integra Type S revival, followed by a partial rundown of Hagerty's 2023 Bull Market List. After that, it's time for some road test updates. Greg talks about his time in Autoblog's long-term BMW 330e PHEV and contrasts it with the 2023 Cadillac Escalade-V. Byron has been driving a Nissan Rogue, Mazda CX-30 and an Infiniti Q50 — serving as a perfect launch pad for a look back at 2022's best sport sedans. After that, it's a preview of Autoblog's 2022 Holiday Gift Guide.  Send us your questions for the Mailbag and Spend My Money at: Podcast@Autoblog.com. Autoblog Podcast #759 Get The Podcast Apple Podcasts – Subscribe to the Autoblog Podcast in iTunes Spotify – Subscribe to the Autoblog Podcast on Spotify RSS – Add the Autoblog Podcast feed to your RSS aggregator MP3 – Download the MP3 directly Rundown Return of the Land Cruiser? Nissan's GT-R successor Acura Integra Type S confirmed Hagerty's 2023 Bull Market List What we've been driving 2022 BMW 330e long-term update 2023 Cadillac Escalade V-Series 2023 Infiniti Q50 2023 Mazda CX-30 Best sport sedans for 2023 Feedback Email – Podcast@Autoblog.com Review the show on Apple Podcasts Autoblog is now live on your smart speakers and voice assistants with the audio Autoblog Daily Digest. Say “Hey Google, play the news from Autoblog” or "Alexa, open Autoblog" to get your favorite car website in audio form every day. A narrator will take you through the biggest stories or break down one of our comprehensive test drives. Related video: Podcasts Acura BMW Cadillac Infiniti Mazda Nissan Toyota Long-Term Garage