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Honda, Mazda, Mitsubishi, Mercedes also under diesel emissions scrutiny

The controversy over Volkswagen's diesel emissions scandal isn't limited to the US. In Europe, where diesel engines are far more popular, the issue is shining a harsh light on the NEDC emissions test. As already known, the evaluation does a poor job of reflecting real-world production of NOx, and it appears a significant number of automakers are affected. The Guardian in the UK has been reporting on real-world test results from a company called Emissions Analytics. After the latest round of checks, vehicles from Mercedes-Benz, Honda, Mazda and Mitsubishi were found to generate far more NOx than they should. The newspaper also published similar results for Renault, Nissan, Hyundai, Fiat, Volvo, Jeep, Citroen, VW, and Audi. On average, the figures are about four times over the limit of producing the pollutant. Unlike VW and its defeat device, these automakers aren't actually breaking the rules. The vehicles perform up to the NEDC lab test for emissions, but those results simply aren't translated to the street. "The VW issue in the US was purely the trigger which threw light on a slightly different problem in the EU - widespread legal over-emissions," Nick Molden from Emissions Analytics said to The Guardian. A big fight to decide the future of this issue appears to be on the horizon. Automakers claim that they can't meet the next round of tightening emissions regulations and are asking for compromises. Although, spokespeople for Mercedes and Honda told The Guardian that the brands would be in favor of the stricter rules. Meanwhile, some European governments began backtracking their support of diesels well before this scandal came to light. The added scrutiny certain hasn't helped the future of the oil-burner. Related Video:

McLaren MP4-X concept shows innovation won't die in F1's future [w/video]

Despite things like turbocharging and kinetic-energy recovery, today's Formula One cars look more or less like the ones that lapped the world's race tracks 20 years ago. Sure, they're much more aero intensive, but the basic look is the same. McLaren, which probably had some serious free time this season considering its misfortunes, has imagined a futuristic F1 car that adopts many innovative and somewhat controversial additions. It's called the McLaren MP4-X, and the most obvious change is the closed cockpit. The death of Jules Bianchi, the accidents involving Maria De Villota and Felipe Massa, and even the death of Ayrton Senna could have all potentially been avoided by adopting a strong closed-cockpit design, like the one advocated here by McLaren. It's also worth pointing out that this design is a boon for aerodynamics. Inside that cockpit, drivers would enjoy an augmented reality display system, sort of like that used by F-35 Lightning II fighter pilots. There'd also be an independent head-up display that McLaren claims could be used to transmit info about race position and flag status. So basically, the kind of data you'd get playing Forza Motorsport or Gran Turismo. Speaking of safety, the MP4-X's entire chassis, beyond the closed roof, would be far safer thanks to the use of "negative-stiffness material structures." Essentially, these materials can soak up the force of an impact and then bounce, for lack of a better term, back into shape. And if you're thinking like we are, this sounds like McLaren wants 900-horsepower bumper cars. Of course, 900 hp is speculation on our end. McLaren is deliberately vague on the powertrain of this concept. Advanced hybrid powertrains aren't surprising, although the team's mention of inductive, wireless charging on tracks sounds like the stuff of Formula E's dreams. In a move that McLaren says "tears up the rulebook," the MP4-X would see a return of ground effects. The underbody would feature enormous venturi tunnels to suck the car to the track. Alongside active aerodynamics that tweak the its shape for turns and straights, this concept McLaren would be both more slippery and offer more downforce than today's cars. There's a lot more on the MP4-X concept than we can talk about here, so head over to McLaren Honda's official website for all the nitty gritty details on this car's advanced systems, including solar cells, advanced tire sensors, and even virtual logos. It all sounds very, very cool.

Acura NSX GT3 data 'will inform future iterations' of the street car

Motorsports programs exist to drive innovation in road vehicles, and that's precisely what's happening at Honda. Acura NSX development boss Nick Robinson told Autocar that the company's work on the GT3 racing variant is directly informing future development on the road car. "In North America, we've just unveiled the GT3 version of the car, and the development team of the street car has had some involvement in its development," Robinson said. "What works well on the track will inform future iterations and updates of the street car and vice versa." But Honda is a big company that does more than build cars. Robinson paid tribute to the impact his employer's well-known motorcycle program had on the NSX. Apparently, building stuff like the CBR helped Honda with the NSX's complicated packaging. "For many years our motorcycle development teams have strived to ensure the optimum centralization of mass, ensuring the lowest possible center of gravity," Robinson told Autocar. "This leads to the best possible yaw response." Is this all a sign that a long-rumored lighter, faster NSX, potentially wearing the vaunted Type R badge, will be especially track-focused? Maybe. Robinson's comments indicate that the company is doing something with the mountains of data it collects running a GT3 program. While a pure road-focused NSX-R successor seems like it'd be a waste of that data, an NSX-based rival to the Porsche 911 GT3 RS might make a lot more sense. Related Video: News Source: AutocarImage Credit: Brendan McDermid / Reuters Motorsports Rumormill Acura Honda Coupe Racing Vehicles Performance gt3