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This is what a 1,200-hp twin-turbo 4-rotor looks like in a Miata

We've seen the diminutive Mazda MX-5 Miata swallow plenty of big engines, but New Zealand drifting ace "Mad Mike" Whiddett is roaring into where-no-man-has-gone-before territory. Wanting to replace his 515-horsepower "MADBUL" RX-7 and its twin-turbocharged, three-rotor 20B engine, his new ride is an NC-series Miata with four rotors and twin Garrett turbochargers courtesy of Pulse Performance Race Engineering. It is called "RADBUL," and expected power at standard boost is 1,200 hp, but the builders at Pulse Performance think it will get up to 1,500 hp at full boost. And yes, that exhaust exits through the hood. Four-rotor engines are actually popular - builds are detailed on forums like this one from 2007 and this one from 2008, this UK company or this Canadian company will sell you one complete - but they're usually being prepped for an RX-7. Mad Mike's choice of a Miata for this enterprise makes this about as extreme as you can get, short of throwing it into a Mazda R360. You can watch Mad Mike tell the story of the build in the video, and check out the first and second installments about the build on the Red Bull site.

Mazda Miata speedster and spyder concepts set for SEMA

Mazda will show speedster and spyder concepts based on the 2016 MX-5 Miata next week at SEMA in Las Vegas. The speedster is at the top of the teaser, and the spyder is the bottom half. The speedster goes with an extreme lightweight design. It has only a small wind deflector in place of the windshield and a blue ether topcoat. The spyder is a vintage roadster rendered into a modern form with a handcrafted leather interior and mercury silver paint job. Both are lighter than the production version and will be sure to get the hearts of Mazda fanatics and roadster enthusiasts alike racing at the possibilities. We doubt either will actually see production, like so many Miata-based concepts of the recent past. But that won't stop us from dreaming all the same. MAZDA TO SHOWCASE LIGHTWEIGHT PERFORMANCE AT SEMA WITH TWO MX-5 MIATA CONCEPTS - MX-5 Spyder and Speedster Concepts Bring Vintage Cues into Modern Designs - IRVINE, Calif., Oct. 29, 2015 -- The Mazda MX-5 Miata has been an exercise in honing the concept of a lightweight sports car for more than 26 years, created solely for driving exhilaration. But for the 2015 SEMA Show at the Las Vegas Convention Center, Mazda designers wanted to see what they could do if that idea was taken to the extreme. What they created were two vastly different takes on the fourth-generation MX-5: The 2016 MX-5 Spyder Concept and 2016 MX-5 Speedster Concept. MX-5 Spyder captures the character of a vintage roadster and translates it into a modern-day design, including bespoke leather interior details that were painstakingly crafted, and featuring a new Mercury Silver concept paint color. MX-5 Speedster is a study in the extremes of lightweight, purpose-built performance, paying homage to minimalist roadsters of the 1950s. The Blue Ether-painted MX-5 Speedster is uncompromised in its approach to wind-in-the-hair driving, going so far as to eschew a traditional windshield for a lighter deflector. Both cars are significantly lighter than the 2,332-lbs. MX-5 roadster that customers can purchase at dealers and come with a host of conceptual and aftermarket pieces and fabrication from partners including Racing Beat, Haartz Corporation, ASC – American Sunroof Corporation, Makin Industries/RAYS Wheels, KW Suspensions, Delta Seat, H&R Springs, Lusch, AC&A Manufacturing, Franks Fab Shop, Long Road Racing and SIM Specialty Interior Manufacturing.

Toyota, Mazda drop Takata as Mitsubishi, Subaru weigh options

It's not a very good time to be Takata right now. Fresh on the heels of longtime partner Honda ditching them, Toyota and Mazda have both come out and said they will not use the company's airbag inflators if they continue to rely on ammonium nitrate. Bloomberg reports that Subaru and Mitsubishi are also contemplating a divorce. "The inflator using ammonium nitrate produced by Takata will not be adopted by Toyota," President Akio Toyoda said during a briefing today. "What's most important above anything else is the safety and peace of mind of customers." Mazda echoed that position, simply saying it "will not use Takata airbag inflators which contain ammonium nitrate in our new cars." When you lose three huge OEM accounts in as many days, it's certainly going to have a deleterious effect on your fortunes. In Takata's case, that's meant a staggering 39-percent drop in their share price over the last three days. Yesterday alone, the company saw a 6.2-percent fall, Bloomberg reports. As the business publication reports, though, Takata isn't going down without a fight. The company is "considering some plans to survive," including a fundraising plan that will see it potentially offer up additional shares for sale. Still, at least one analyst doesn't see whatever company survives staying involved in the airbag inflator business. "I really don't see how they're going to be able to survive as an inflator manufacturer," Valient Market Research founder Scott Upham told Bloomberg. "When your major clients publicly come out and say that they're not going to use your products anymore, it makes this very difficult to sustain your business." News Source: Automotive News - sub. req.Image Credit: Carlos Osorio / AP Honda Mazda Mitsubishi Subaru Toyota Safety supplier