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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:

Smart brand might be doomed

Reports are painting a less than rosy picture of the Smart brand's future. The Daimler-owned carmaker is going fully electric in 2020, but that might not be enough to keep it alive for long. Inside sources, quoted by Automobile Magazine, are saying Renault is likely to pull out of the partnership that created the current Smart ForTwo/Renault Twingo pairing introduced in 2014. The two rear-engined cars share a platform, and when the current Twingo is done for, Renault might want to part ways. In addition, Mercedes isn't willing to prop up Smart on its own, and there is a possibility that the entire Smart brand could be shuttered by 2026. A previous joint venture was the ForFour hatch co-developed with Mitsubishi, and despite the ForFour name living on in the current generation rear-engined car, the earlier FWD hatchback has quickly been forgotten. Not long ago, Smart presented its Forease open-top concept to give customers a glimpse of what future Smart cars would look like, but at its heart the Forease was still a current Smart dressed up with concept car details. The next-generation Mercedes-Benz A-Class is to be signed off in 2021 for a 2025 introduction, and it can be underpinned by a more flexible, fully scalable platform that could also serve to support a new entry-level Mercedes-Benz vehicle that could render the separate Smart brand pointless. Then there's Geely, who now owns nearly 10 percent of Daimler, and who is partnering with Daimler to launch a new "premium" ride-hailing venture in China. As Geely develops its mobility solutions, it is likely to keep an eye on Smart: Smart cars have been car-sharing staples around the world for quite a while, from users such as Car2Go. Automobile Magazine says that if a Smart is co-developed with Geely, it might suit the Chinese market well, but a global business case might be challenging. In any case, if Smart wants to survive beyond the current Renault partnership, the new model should be agreed upon quickly, and it must be based on a platform flexible enough to support full electric drive. Reportedly, there are now ongoing feasibility studies for a fully electric Daimler "U-Class," which would include a Smart-like three or five-door hatch with two wheelbase options, a ride-sharing shuttle with autonomous capabilities, and an urban delivery panel van. But Smart must justify itself for the upcoming decades, or the future Daimler products that occupy its niche will be wearing a three-pointed star instead.

2014 Mercedes-Benz B-Class ED has 87-mile range, 84 MPGe

Well, that extra weight had to be felt somewhere. With Mercedes-Benz getting ready to start US sales of its B-Class Electric drive this summer, the big question was how well its range would stack up against other electric vehicles sold in the States. Turns out, the Benz is a bit of a juice hog. Let's say up front that the 87-mile single-charge range of the Mercedes-Benz actually stacks up nicely against its competition, since that distance puts the new model right in line with the Nissan Leaf and BMW i3 (we'll ignore the Tesla Model S for a second, here). You can find the numbers at the US Department of Energy's FuelEconomy website. As far as miles per gallon equivalent ratings, though, the Benz's steel frame makes it come up short, as it's about 1,300 pounds heavier than the carbon-fiber-body i3 and about 600 pounds heavier than the Leaf. The B-Class EV has a bigger battery than the i3 or the Leaf (36 kWh compared to 22 kWh for the i3 and 24 kWh for the Leaf) and that's one reason the car gets an 84 MPGe rating, which is about 26 percent less than the Leaf's and 32 percent less than the i3's. But at least the local utility companies will be happy. Mercedes-Benz priced the 177-horsepower B-Class ED in April at $41,450, or $100 more than the i3. Check out Autoblog's First Drive impressions here.