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Mazda zooms into SEMA 2016 with lighter MX-5 Speedster and RF Kuro concepts

It's almost time for the 2016 SEMA aftermarket show again, if you haven't guessed already by the steady parade of early looks at various show cars. Mazda's MX-5 creations are generally a highlight for us, unapologetic Miata junkies that we are. This year's cars should be just as exciting as last year's, one being a revision of last year's Speedster concept and the other based on the brand new, sexy RF retractable targa top model. Both SEMA MX-5s were designed and built in-house at Mazda's Irvine design studio. This year's Speedster is somehow even lighter than before. Mazda carved 100 pounds out of it, making it a staggering 350 pounds less than a production soft top model. It's also been repainted in a color called "White Ether", which we're imagining looks something like the "Blue Ether" paintjob on last year's highly reflective Speedster minus the blue tint. Mazda will probably never sell a roofless Miata or anything this lightweight, but maybe it should. It looks like it'd be a blast to drive at a road course. And then there's the RF Kuro concept, the first RF-based SEMA show car, which is shown in the teaser above. It doesn't seem terribly extreme, to be honest. It's wearing a matte charcoal paint, which explains the "Kuro" moniker – kuro means "charcoal" in Japanese. A set of 17-inch RAYS forged wheels and MX-5 Cup suspension, and that's about it. Not to knock it; the RF is a sexy looking thing as it sits, and Cup suspension should make it handle even more like a go-kart. Of course, both concepts will be fully revealed at the show next month in Las Vegas. Stay tuned for a dose of concept Miata hotness.Related Video:

2016 Scion iA shows its face, for better or worse, in New York [w/video]

We have a theory that, among auto designers, there's something resembling Stockholm Syndrome. Designers spend so many hours looking at a single product that, after awhile, they can't help but fall in love with it, regardless of how bad it may look to everyone else. That might explain the appearance of the Scion iA, which while largely similar to the handsome Mazda2, replaces that car's attractive five-pointed grille with what could be described as a gaping maw. Fortunately, it's only the Scion grille that really causes any offense. The parts of the iA that have been left to Mazda designers are, as we said, rather handsome. That includes both the attractive rear and the Kodo-derived lines found in the tiny sedan's profile. The cabin, meanwhile, is well outfitted with standard equipment, including a seven-inch touchscreen display. Plastic is the dominant material, although the overall layout is logical and mostly attractive. Have a look at our live gallery of images of Scion's first-ever four-door sedan. Sports Sedan that Shouts Success All-New 2016 Scion iA Rolls Into New York With a Trunk - Brand's first-ever sedan with dramatically sporty look and agile moves - Estimated MSRP in the $16,000-range for well-equipped mono-spec model • High-spirited 1.5-liter engine; estimated 42 MPG highway - Choice of 6-speed stick shift or 6-speed automatic - Standard Low-speed Pre-collision safety system - Roomy cabin with premium amenities - 7-inch multimedia system with voice recognition NEW YORK, March 31, 2015 – Scion is expanding its line-up in more ways than one. In addition to adding a new vehicle to its stable, it's also adding its first-ever sedan, the remarkably sporty, yet very affordable, 2016 Scion iA. The Scion iA sedan joins the all-new 2016 Scion iM hatchback for a one-two punch in the subcompact and compact segments. The new sans-hatch Scion will arrive in dealerships this fall for an estimated MSRP in the $16,000-range. That's for a mono-spec model equipped with standard Low-speed Pre-collision safety system and 7-inch multi-media system with voice activation. Because Scion has a no hassle, no haggle Pure Price, customers walk out the door with the same price they saw posted in the dealership. "Dramatic" could be an understatement when describing the visual impact of the 2016 Scion iA. Beneath the daringly curved sheetmetal lies a tight, agile machine that re-defines "entry level." Call the design "class above," a term that applies throughout the car.

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.