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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:

Honda making hydrogen from solar power in UK

Honda is going to launch a hydrogen-powered production vehicle (its second, really) next year, but the all-important H2 infrastructure question hasn't been fully answered yet. One possible solution is being tested over in the United Kingdom, where Honda is turning solar energy and water into hydrogen at its Swindon plant. SHD Logistics says the plant is the UK's "first commercial-scale hydrogen production and refuelling facility powered by solar energy." Despite the presence of an FCX Clarity in some pictures from the ribbon cutting, it's unclear if the station will be able to fuel any passenger cars. SHD Logistics talks about sending the hydrogen from where it is generated on the Honda plant grounds into the plant using 300-meter underground pipes so that hydrogen forklifts can refuel as needed. Two hydrogen fuel cell trucks used by Briggs Equipment UK, Honda's partner in the station, will also refuel at the plant. Honda said earlier this year that it, along with partner GM, would work to reduce the costs of a hydrogen refueling infrastructure. Solar-powered hydrolysis – which is what the Swindon facility uses – doesn't sound cheap to us, but at least it reduces the overall environmental costs, compared to using electricity generated from fossil fuels.

This is what Honda's new F1 engine will sound like

It appears that not even the legendary pairing of McLaren and Honda can produce a 2015-regulation Formula One engine that sounds as good as the current V8s. Much like Mercedes-AMG Petronas, McLaren Honda have released a clip of their turbocharged, 1.6-liter V6 ahead of next season, and well, at least to our ears, it's not the sweetest of singers.
We've reported on concerns that the new engines wouldn't sound "right," after years of the high-revving V8s and V10s. The more we're hearing of these new engines, the more reasonable those worries seem. That said, we'll need to wait until we really hear these cars driven in anger to render a final verdict.
Scroll down to view the official press release from Honda and to hear what the future McLaren Honda will sound like when it hits the grid in 2015. For comparison, we've also included some on-board footage of Jenson Button's McLaren's V8 from last season.