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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 MC-? prototype

Honda is less an automaker, it has been said, and more of a motor company that builds vehicles into which to put its engines. That sort of perspective goes a long way towards explaining the mind-boggling diversity of the company's product lineup. The Japanese industrial giant makes lawnmowers, marine engines, robots... even jet aircraft. It's also one of only a handful of companies that makes both cars and motorbikes. We recently had the chance to sample something that falls in between.
It's called MC-β - shorthand for Micro Commuter Beta, which already tells you it's Honda's second stab at the formula. The first Micro Commuter prototype was announced a year prior and, though marginally larger, struck us as a more complete product than its successor. But it'll likely still be a while before the formula is perfected and put into production, and even then it isn't likely to find its way any time soon to Honda's American showrooms - whether those showrooms are selling cars, bikes or ride-on mowers.
Driving Notes

Honda exclusive to McLaren at least until 2017

Next year Honda will return to Formula One after a seven-year absence, bringing the first Japanese automaker to compete in the top-tier racing series back into the fold. But though it started in 1964 much as it ended in 2008, running its own team (much like Ferrari and Mercedes do today), its new F1 program will see it revert to engine-supplier status (like Renault did when it sold its team to Lotus).
The arrangement will be exclusive to McLaren for the 2015 Formula One World Championship. But what fans and insiders alike have been wondering is how it might expand after that. Well, now we have at least part of the answer.
According to the F1 business insiders at Pitpass, Honda motorsport chief Yasuhisa Arai told a group of journalists at this past weekend's race in Shanghai that the deal with McLaren will be exclusive not only in 2015, but also in 2016. In other words, it won't be until 2017 at the earliest before Honda might begin supplying engines to any other teams, if at all.