Ferrari Dino 246 Gts Replica\kit On Mazda Mx5 Donor on 2040-cars

Auto blog

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.

Autoblog's top 50 car photos of 2016

This one shouldn't need much explanation. We like cars a whole lot, and that includes not just driving them but taking great pictures of them. We've collected our 50 favorite images from this year in the mega-gallery above. It's a mix of old and new, with a healthy dose of vintage and modern race cars mixed in, and not one single shot under the harsh lights of an auto show. So click through and enjoy. Featured Gallery Autoblog's Top 50 Photos of 2016 View 50 Photos Image Credit: Copyright 2016 Autoblog.com Audi BMW Chevrolet Dodge Ferrari Ford Lamborghini Mazda McLaren Mercedes-Benz Porsche Rolls-Royce Volvo Convertible Coupe Motorcycle Luxury Racing Vehicles Performance Supercars Classics

2016 Mazda MX-5 Miata battles Toyota GT86 on track

It's got two doors and a 2.0-liter four-cylinder engine up front, driving the rear wheels. It's made in Japan, and as far as bang-for-your-buck goes, it's a downright bargain. So which are we talking about, the Mazda MX-5 Miata, or the Toyobaru coupe known alternately as the Subaru BRZ, Scion FR-S, or Toyota GT-86? The answer is "yes," and it just goes to show, roofs notwithstanding, how close these two vehicles really are to one another. Which one is your favorite may come down to a matter of personal taste, but for its latest video, Auto Express set out to find out which laps faster around the track. On paper at least, the Toyota's 200 horsepower will trump the Mazda's 155 any day of the week, and twice on Sunday. Then again, the Miata does weigh a good 400 pounds less, even with the 2.0-liter engine and despite its convertible bodystyle – but is that enough to make up the difference? You're going to have to just watch the video for yourself to find out. All we'll tell you is that the match is pretty darn close – what you might call a photo finish, if they were actually racing each other at the same time as opposed to each racing the clock separately. So watch the video above and voice your support for your favorite little Japanese sports car in the Comments section. Related Video: