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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.

2016 Mazda6 gets a facelift in LA

The 2014 Los Angeles Auto Show is a busy one for Mazda, as the Japanese brand shows off not only its all-new CX-3, but a facelifted Mazda6 sedan.
The 2016 sedan has been nipped and tucked to better fit in with newer members of the brand's range, including the aforementioned CX-3, as well as the Mazda3 and MX-5 Miata.
The grille's horizontal slats are now trimmed in chrome, while the brand's chrome wing motif on the fascia is larger and more prominent, particularly where it feeds into the headlights.

Autoblog readers meet the 2016 Mazda MX-5 Miata [w/video]

Mazda dropped off a 2016 MX-5 Miata at our office this week with only two stipulations: don't break it, and don't talk about driving impressions until 3:01 AM Eastern on Monday, June 1. Easy enough. But rather than hold our notes until the embargo lifts, we decided to do something different. By now, you've no doubt read all there is to know about the 2016 Miata, including our review of the Japanese-spec car with the 1.5-liter engine that isn't coming to North America. You know it's smaller than the outgoing NC model. And you know that, at 2,332 pounds, it's nearly as light as the original. But what you, and we, didn't know, is what Miata owners think about the 2016 model. The MX-5 group is incredibly enthusiastic, and they love their cars. Hell, they love each other's cars. So we gave them an opportunity to not only get together, but to get an up-close, informal look at the ND Miata outside of an auto show, several months before it officially goes on sale. Here's what we did. Cars And Coneys Anyone who's familiar with the Woodward Dream Cruise in metro Detroit has no doubt heard of Athens Coney Island in Royal Oak, MI. It's an iconic place, known for its top-notch coney dogs, quick service, and the fact that, on pretty much any warm-weather weekend, you can find cool cars in the parking lot. We called the folks at Athens, told them about our Miata meet-up, and they were immediately on board with coneys, soda, and coffee for our gathering. We first published our meet-up info late last week, and sent the details out on our social media channels, as well. But without any formal RSVP system, we had no idea how many people would show up. And since Mother Nature decided to provide us with gray skies and chilly temperatures, we figured a lot of would-be attendees opted to bail at the last minute. Needless to say, we were surprised to see several Miatas already lined up in the Athens parking lot when we arrived with the ND at 4:40 PM, 20 minutes before the listed 5:00 start time. No one kept a formal count, but our best guess is that something like 50 or 60 cars showed up over the course of three hours. Some folks stayed the whole time, some people only stopped by for a quick cup of coffee. A couple people drove long distances to attend – a few Miatas hailing from southern Ohio, and many from western Michigan. We had a huge mix of cars, too.