1993 Mazda Rx-7 Touring Coupe 2-door 1.3l on 2040-cars

Auto blog

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:

Finalists for 2014 Green Car of the Year announced

The list of finalists for the 2014 Green Car of the Year has been announced, and in a genuinely bizarre twist, there's only one hybrid and no electric vehicles among the five contestants, despite the arrival of cars like the BMW i3 and Tesla Model S. Taking the place of the EVs are a pair of diesels, repping a technology that last won a Green Car of the Year award in 2009, when the Audi A3 TDI took the title. No diesel was in the running for last year's award.
Naturally, both of the diesel finalists are fielded by the Germans - with BMW's 328d and Audi's A6 TDI getting the nod. In the case of the 3 Series, BMW installed a 2.0-liter, turbodiesel, capable of delivering 180 horsepower and 280 pound-feet of torque, while returning 45 miles per gallon on the highway. Audi and its larger, 3.0-liter, V6 turbodiesel produce quite a bit more grunt, with 240 hp and 428 lb-ft of grunt, but net a very impressive 38 mpg on the highway in the A6.
Finalists for this year's awards include two diesels, three gas-powered cars and a plug-in hybrid.

2016 Mazda MX-5 Miata will rock 2.0L SkyActiv engine in US, 1.5L elsewhere

Let the speculation finally end - we know what will power the next-generation 2016 Mazda MX-5 Miata, and it's not turbocharged. The US model will get a SkyActiv 2.0-liter engine and six-speed manual, while models in the rest of the world have a 1.5-liter engine, confirming earlier rumors.
Unfortunately, Mazda isn't letting loose how much power either of these mills make just yet. For sake of comparison, the current SkyActiv 2.0 in the Mazda3 produces 155 horsepower and 150 pound-feet of torque, and the 1.5-liter in the UK (and elsewhere) has about 99 hp and 110 lb-ft of twist. However, the current Miata produces 167 hp and 140 lb-ft.
But fret not droptop fans. The company's brochure from the 2014 Paris Motor Show confirms, "all available drivetrains have been specially tuned for the all-new MX-5," which at least hints at the possibility of more performance. Also, even if the numbers remain untouched, the new Miata should feel even more sporting on the open road. That's because Mazda says the new model weighs in the neighborhood of 2,200 pounds; with that in mind, the 2016 car would boast around 14.19 pounds per horsepower versus 14.85 lb/hp in the present MX-5. Progress!