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How the VW diesels perform in cheat mode

Are you tired of the Volkswagen diesel emissions scandal? Yeah? We are, too. But here's a story that, at the very least, gives us something resembling answers about one of the most important questions surrounding the firestorm – how will the affected cars perform when they're in their emissions-cheating test mode? Consumer Reports was able to find out, tapping into what it believes is the cheat mode. By turning the car to accessory mode, flipping on the hazards, and tapping the gas pedal five times, CR was able to defeat the auto-engaged traction and stability controls, which it believes activates cheat mode. The safeties will reengage if it detects the rear wheels spinning, so the next step was what CR called "a hack." The team unplugged the rear wheel sensors, so the car's computers couldn't tell whether the wheels were spinning. By the way, don't try this at home. With that done, CR hit the road, testing both a 2011 Jetta Sportwagen TDI and a 2015 Jetta TDI sedan in their normal and cheat modes. Why both cars? Well, the 2011 uses the EA188 diesel, which represents the bulk of the affected cars, while the newer Jetta uses the latest EA288, which just arrived for model year 2015. The results are, in a word, interesting. The EA188 engine lost 0.6 seconds on the way to 60 miles per hour while in emissions-compliant cheat mode, and fuel economy fell from 50 miles per gallon to 46. For the newer EA288, the 0-60 difference was negligible – just a tenth of a second – while the fuel economy dipped from 53 to 50 mpg. There are a few takeaways here. First of all, and as suspected, running in cheat mode did hurt both performance and fuel economy. But perhaps more importantly, even in emissions-compliant mode, both vehicles easily beat their EPA fuel economy estimates. According to FuelEconomy.gov, the highest rated 2011 TDI Sportwagen, the manual-trans model, was rated at 30 mpg city and 42 mpg highway, with a combined rating of 34 (the auto drops the city and combined ratings by one mpg, while the highway falls by three). The best a 2015 Jetta TDI sedan can do according to Uncle Sam, meanwhile, is 31 city, 46 highway, and 36 combined with the manual (again, the auto is worse, but only by a single highway mpg). Related Video:

2015 Volkswagen Golf SportWagen First Drive [w/video]

Volkswagen currently offers five Golf models in the US, and in just a few weeks it will add the 2015 SportWagen to the lineup. The previous version sold as the Jetta SportWagen, although it was technically a Golf. For the new model, VW product planners decided to align all the hatchbacks under the same name. The SportWagen employs the same engines as the Golf, but significantly stretches its new MQB architecture. The result is greater practicality in the form of cargo room. With the seats up the SportWagen holds 30.4 cubic feet, almost 8 more than the Golf. The gap widens to nearly 14 cu ft with the seats folded; a max capacity of 66.5 cu ft puts the SportWagen into compact crossover territory. That added functionality leads VW to think it can sway buyers shopping the likes of the Honda CR-V and Toyota RAV4. And with the high-mpg diesel variant – 31 mpg city, up to 43 highway – VW hopes to lure those considering fuel-sipping MPVs like the Toyota Prius V and Ford C-MAX. What separates this Golf from those other two segments is the driving prowess we've come to expect from Wolfsburg's best-selling nameplate. While the silhouette is similar to the outgoing Jetta wagon, designers honed the character lines to give the Golf SportWagen a more modern, angular aesthetic. The LED headlights look sharp, the hood now scoops down at a steeper angle into the front fenders, and the general proportions – in line with other Golf models – have changed. The new SportWagen is lower, longer, and wider and than the Jetta SportWagen it replaces. Specifically, it is 1.1 inches longer, 0.7 inches wider, and despite being about an inch lower, actually boasts more headroom. Inside, things look pretty familiar to the current Golf family. There are small, premium touches such as a sporty, flat-ish-bottom wheel, piano-black trim, and an optional one-touch panoramic sunroof that makes the cabin a bright, airy, and pleasant place to be. Otherwise, it's your standard Golf fare, but with a whole lot more room out back. The same two engines that power the standard Golf – the 1.8-liter turbocharged inline-four TSI, and 2.0-liter turbocharged TDI diesel – are also found under the hood of the SportWagen. Gasoline-powered models come with a five-speed manual or a traditional six-speed auto, while the TDI gets six-speed transmissions across the board – either as a row-your-own manual, or a dual-clutch DSG auto with steering wheel-mounted paddles.

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: