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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:

VW offers to buy back new diesels if bans introduced

By Maria Sheahan FRANKFURT, Germany — Volkswagen will buy back new diesel cars if German cities ban them, it said on Thursday, seeking to reassure potential buyers and stem a plunge in sales of diesel vehicles. Europe's biggest automaker also said it would extend incentives for buyers of new diesel cars. The moves come after a German court ruled last month that cities in the country could ban the most polluting diesel vehicles from their streets. Many German cities exceed European Union limits on atmospheric nitrogen oxide, known to cause respiratory diseases. Fears of bans have led to a plunge in demand for diesel vehicles, which are also key to carmakers' attempts to meet new EU rules on carbon dioxide (CO2) emissions. While diesel cars are heavily criticized for emitting nitrogen oxide, they spew out less CO2 than gasoline equivalents. Diesel car sales plunged 19 percent in Germany last month. At its core VW brand, Volkswagen said its buyback offer applied to new diesels bought between April 1 and the end of 2018 and would kick in if the city in which the buyer lived or worked banned diesels within three years of the purchase. It said its dealerships would buy back diesel vehicles affected by bans at their current value if their owners at the same time bought a new vehicle that was not affected by cities' driving restrictions. At Czech brand Skoda, the guarantee applies to cars bought between April 1 and the end of June, but will cover bans introduced within four years of the purchase date. At premium brand Audi, the offer only covers leased vehicles. Volkswagen also said it was extending to the end of June incentives for customers trading in older diesels for new ones. Fellow German carmaker BMW said earlier this month it would offer to take back leased vehicles if diesels were banned within 100 kilometers (62 miles) of the operator's home or place of work. There has been a global backlash against diesel-engine cars since Volkswagen admitted in 2015 to cheating U.S. exhaust tests. But Germany's government is seeking to avoid widespread bans on heavily polluting diesel vehicles, which companies say could cut the resale value of up to 15 million vehicles in Europe's biggest car market. In Germany, where motorists expect to drive powerful cars on motorways with no speed limits, any restrictions will be unpopular.

Watch VW Group Night kick off the Frankfurt festivities

The Frankfurt Motor Show is Volkswagen's home affair. As a result, the whole of the automaker group makes a big splash, even before the show doors open. We'll be live from the Frankfurt floor starting early tomorrow morning, but tonight we're posted up in the stands at the always-entertaining Volkswagen Group Night. To give you a taste of what it's like to be there, we're going to be shooting some man-on-the-scenes video as the night progresses. Below you'll find videos of all the best that VW Group brands – Audi, Lamborghini, VW, the lot – have to offer, as quick as we can upload them. So, enjoy the Short Cut Videos you see here. And stay tuned as we add more to the tally, below. And, of course, be sure to check in on Autoblog early and often tomorrow, when we bring you official debuts of new production vehicles and concept cars, a ton of new video content, live image galleries, and lots more.Seat Leon Cross Sport Bentley Bentayga Lamborghini Huracan LP 610-4 Spyder Volkswagen Multivan PanAmerican Edition Bugatti Vision Gran Turismo Concept Audi E-Tron Quattro Concept Audi A4 Ducati Monster 1200 R Volkswagen Tiguan Skoda Superb Combi Porsche 911 Carrera S Coupe and Cabrio Volkswagen Tiguan GTE Porsche Mission E Concept Volkswagen Group Night Finale Green Frankfurt Motor Show Audi Bentley Bugatti Lamborghini Volkswagen SEAT Skoda Videos Original Video Frankfurt 2015