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EPA discovers defeat device in more VW TDI engines

In a sternly worded letter, the United States Environmental Protection Agency has issued a new set of allegations against Volkswagen claiming that so-called emissions defeat software has been found in the company's 3.0-liter TDI V6 diesel engines. This is a completely different engine than the 2.0 TDI that has already been identified as an emissions cheater. In addition to VW, the EPA has included Audi and Porsche in this notification, as the non-compliant engine has been used in vehicles from all three manufacturers from model years 2014 through 2016. The EPA claims that cars equipped with the 3.0 TDI engine know when they are being tested for emissions, and their on-board computers switch into a mode designed to pass the stringent requirements in the United States for diesel exhaust. Vehicles sold in the United States with this engine include the 2014 VW Touareg, 2015 Porsche Cayenne, and 2016 Audi A6, A7, A8L and Q5. The EPA says there are 10,000 vehicles currently on the road with this second defeat device, along with an unknown number of 2016 models either on dealer lots or in the driveways of consumers. According to the EPA, VW's 3.0-liter TDI, like the 2.0 TDI that was found to circumvent US regulations, has code in its computer specifically written to intentionally put the vehicle's engine into a mode that allows it to meet exhaust requirements. When the vehicle is unhooked from testing equipment, it will go back into a mode that emits nine-times higher nitrogen oxide emissions than is allowable under US law. "VW has once again failed its obligation to comply with the law that protects clean air for all Americans," said Cynthia Giles, Assistant Administrator for the Office for EPA's Enforcement and Compliance Assurance. "All companies should be playing by the same rules. EPA, with our state, and federal partners, will continue to investigate these serious matters, to secure the benefits of the Clean Air Act, ensure a level playing field for responsible businesses, and to ensure consumers get the environmental performance they expect." Richard Corey, Executive Officer of the California Air Resources Board, said in a statement, "Today we are requiring VW Group to address these issues. This is a very serious public health matter. ARB and EPA will continue to conduct a rigorous investigation that includes testing more vehicles until all of the facts are out in the open." This story will be updated as new information becomes available.

Audi introduces leaner, fitter second-generation Q7

After a long run on the market, Audi has finally signaled the end of the first-generation Q7 with the introduction of the long-awaited second-gen version of the brand's first crossover. The 2016 Q7 is a far lighter machine than the vehicle it replaces, thanks to ample use of hot-shaped steel and aluminum. Beyond that, the Volkswagen Group's MLB platform will allow the fullsize Audi to accommodate a range of engines, including more potent versions of the US market's 3.0-liter, supercharged V6 and 3.0-liter TDI. On top of that, the next-gen Q7 will also be available as a diesel plug-in hybrid, complete with a version of the brand's Quattro all-wheel-drive system. The Q7's new design, meanwhile, gives the car an almost wagon-like appearance and profile. The "Singleframe" grille is wrapped in an aluminum-looking surround, not unlike Audi's smaller RS Q3. Audi's cleanly styled headlights flank it, while the large taillights aren't as aggressively angled as Audi's other crossovers. The cabin is lavish, featuring a typically stylish design with plenty of tech. A 12.3-inch TFT display takes the place of a conventional instrument cluster, while the center stack is crowned by its very own display. Even the HVAC display controls are handsome. You can see exactly what we mean in our gallery of live images of the new Q7, straight from the floor of the 2015 Detroit Auto Show.

Audi Q4 crossover starts production in 2019, Q8 in 2018

Audi's crossover line-up will be expanding in the next couple of years. The company announced production dates both for the already announced Q8 flagship, as well as its less-publicized Q4 compact. The Q8 will begin production next year at a plant in Slovakia that currently builds the Q7. The Q4 will start production in 2019 at a plant in Hungary that will also build the Q3. Audi has shown us concepts of the Q8 already, and we've seen prototypes undergoing testing. But Audi hasn't said much about the Q4 until now, and we haven't seen camouflaged examples running around yet. Audi says the Q4 will have a "coupe-style silhouette" and "be positioned between the Audi Q3 and Q5." Of course that second part you probably figured out based on the name. The description of its looks leads us to believe that this will be the production version of the Audi TT Offroad concept, pictured above, from a few years ago. However, don't expect the concept's 408-horsepower hybrid powertrain to be offered, at least not at the start. It's been a long time coming for this crossover. The TT Offroad was reportedly confirmed for production back in 2015. And last year, Audi secured the trademark for Q4 from Fiat Chrysler. With production starting in 2019, it will probably still be a while before we get a glimpse at the new SUV. Odds are, we'll see a concept early next year at the soonest, followed by the production model at the end of 2018. As for the Q8, we would expect to see the production model revealed at the end of this year, or possibly early next year. Related Video: