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Sorry, rotary fans, Mazda's RX Vision probably won't happen

Mazda is doing a lot of things the right way in this age of beige-ness. It just crammed a turbocharged inline-four into the improved CX-9, a bold move unto itself, and one that should also be heartening for Mazdaspeed fans. Wouldn't that engine make for a swell Mazdaspeed3 or Mazdaspeed6? There's a reasonable ray of hope there, but not necessarily a guarantee. The RX Vision, though, is a pipe dream. Mazda is smart to keep the rotary dream alive. It's smart to keep developing it in back rooms and to keep the idea on the public's mind. Credit where credit's due: Mazda has solved some of the stickiest issues the rotary engine has, through savvy engineering and perseverance. We've seen promising patent filings for the Skyactiv-R engine, which is supposed to be found in the RX Vision concept. Mazda uses every opportunity to remind us that development is continuing and that the company would love to bring a rotary-powered sportscar to production. I believe it. But the RX Vision is just a design study. And there are some harsh realities about rotary engine emissions and fuel economy standards that are difficult for modern piston engines to achieve without expensive componentry. Emissions and fuel economy are both bugbears of the rotary, in case you've forgotten. And that explains Mazda's interest in running rotaries on hydrogen, but down that road lie infrastructure challenges as daunting as making a gasoline-powered rotary burn as clean as one of Mazda's Skyactiv piston engines. All this is meant to put Mazda's recent comments to Top Gear in context. Mazda's design director, Kevin Rice, spoke to TG at the Concorso d'Eleganza Villa D'Este, and was waving Mazda's rotary flag quite enthusiastically. "In the back rooms at Mazda, we're still developing it," Rice said, "and when the world's ready to buy another rotary, we'll be ready to provide it." I'd like that to be a comforting statement, but given the realities of fuel economy and emissions regulations and Mazda's position in the market, it seems like a hollow platitude. "When the world's ready" is just another way of saying "when we solve the fundamental issues with this engine layout, and there's an unambiguous market study that shows we can build these cars and make a profit, we'll consider it." That seems like a lot of "ifs". Perhaps Mazda does have a clean-burning, efficient, cheap-to-produce rotary running on an engine dyno in Hiroshima, and it's prepping an RX-9 for the next auto show.

Recharge Wrap-up: Renault-Nissan hits 250,000 EVs, will the next Toyota Prius be an SUV?

Will the next Toyota Prius be an SUV? Mazda and Toyota recently reached an agreement to share powertrain technologies, which will help Mazda comply with California's tightening ZEV restrictions with a plug-in vehicle. On the flip side, Toyota will have access Mazda's Skyactiv diesel powertrain, which a source tells Motoring will be used in an SUV based on the Toyota Prius (and, as Hybrid Cars suggests, on the Toyota C-HR concept). Interestingly, the collaboration will also give Mazda access to Toyota's fuel cell technology, which could mean more hydrogen powered cars on the road and the subsequent expansion of hydrogen fueling infrastructure. Could it also make way for a long-awaited hydrogen powered rotary-engine sports car from Mazda? Read more at Motoring. Samsung SDI unveiled two new lithium-ion stationary batteries at Intersolar Europe. In doing so, Samsung throws its hat in the ring with the likes of automakers Tesla and Mercedes-Benz, using knowledge from electric vehicle batteries in the arena of home solar energy storage. In addition to its 3.6-kWh battery, its new 5.5-kWh and 8.0-kWh batteries offer storage solutions at a larger, more practical scale for solar customers. Called the All-in-One, the battery system, borrowed from electric vehicles, is made up of a photovoltaic inverter, battery PCS and lithium-ion battery, and promises efficiency, compactness, fast installation and an affordable price. Read more from Samsung SDI. The Renault-Nissan Alliance has sold its 250,000th electric vehicle. The quarter-millionth EV was a white Renault Zoe sold to a French computer engineer from Bordeaux named Yves Nivelle. While he credits a government program offering a ˆ10,000 rebate for EV buyers trading in an older diesel vehicle for helping him make the decision to pull the trigger on the new Zoe, "I have to say, I was convinced the first time I drove the car. It's a real pleasure to drive and it feels good to do my part for the environment," says Nivelle. The Alliance had sold around 31,600 EVs from January to May this year, up 15 percent from the first five months of 2014. See the video above, and read more in the press release below. Renault-Nissan Alliance sells its 250,000th electric vehicle • Historic EV milestone reached in early June • Alliance sells half of all EVs globally • EV sales up nearly 15 percent through May vs.

Fiat 124 spied with top down

With fall officially here, the days are rapidly running out for much of the country to put the top down and enjoy a convertible. Fiat apparently wants to take advantage of the good weather while it lasts, given these fresh spy shots of the 124 Spider testing with the roof down. In terms of styling, these photos show the droptop with an extremely similar look to the ones from July. The roadster still appears to have rounded headlights and a wide grille up front, which the kidney-shaped cladding does nothing to hide. The hood bulge continues to be there, too, and so is the spiderweb-pattern camouflage. However, these new shots let us check out the roll hoops that are visible with the top out of the way, and we even get to see the manual roof in operation. Also, note there are now dual exhausts at the rear, rather than the quad tips from before. Underneath all this camo and cladding, we know that the 124 Spider shares underpinnings with the new Mazda MX-5 Miata. The engine remains a mystery, but competing rumors suggest the 1.4-liter turbocharged four-cylinder from the current 500 Abarth or the 1.7-liter turbo four from the Alfa Romeo 4C. Thankfully, an answer might not be too far away because the roadster is mooted to debut this year, possibly at the Los Angeles Auto Show in November. With the latest Miata receiving high praise from critics, the motoring world soon gets to find out whether Fiat can find any room for improvement. Related Video: