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To solve diesel problem, VW might need two fixes

Volkswagen says that a fix is on the way for its 11 million vehicles around the globe that are equipped with diesel engine software that can evade emissions tests. The problem might be far more complicated than simply creating a single solution for all of them, though. According to Automotive News citing Reuters, two remedies to cover different NOx-reducing systems could be necessary, and both potentially affect performance. Earlier examples of the EA 189 diesel engine used a lean NOx trap to reduce the harmful material coming from the tailpipe. According to experts in the Automotive News report, a software update might allow the engines to achieve compliance, but that could affect fuel economy. VW already tried this route once before the scandal came to light, but tests by the California Air Resources Board still showed the figures were too high. Later, some of the 2.0 TDI engines began using Selective Catalytic Reduction that reduced NOx by injecting a urea solution into the exhaust stream. According to Automotive News, a software update for this equipment might increase the amount of the substance used. Not only would that mean topping up the fluid more often, but there still could be some reduction in fuel economy. But, since the 2-liter, 4-cylinder TDI engine that sits inside the diesel vehicles first mentioned as being affected by the issue in the US don't have a urea treatment system, VW would need to install them into these cars. VW still hasn't officially outlined its solution (or solutions) to the emissions issue but is expected to soon. The automaker's long-term evasion of regulations with these diesel engines pumped vast quantities of additional NOx into the air. The substance is known to be linked with smog and acid rain. The US Department of Justice is already beginning an investigation into the company, and politicians are pushing for harsh punishments.

VW agrees to halt next-gen rally car development to help others stay in WRC

Volkswagen has petitioned the FIA to hold on to the current specifications for cars in the World Rally Championship, according to Autosport.com. The move is evidently an effort to keep as many competitors in the sport as possible, despite the fact that using the current spec racers may actually hurt Volkswagen's chances at winning. The three factory teams currently competing in the WRC are at the end of a three-year homologation cycle at the end of 2013, and new cars are expected to bow next year. But developing new racers could cost as much as $4.7 million.
That price tag would put M-Sport (which fields Ford racers) out of the WRC game for 2014 and would put Citroën participation in question as well. VW has already begun work on the next iteration of its Polo R WRC, and the hatch has nabbed four wins in six rounds this season. Now it appears that car won't bow until at least 2015. The FIA has officially agreed to freeze homologation of new WRC cars until the end of next season.

VW brands excluded from Wards 10 Best Engines for 2016

You definitely won't be seeing a powerplant from Volkswagen or Audi on the 2016 Ward's 10 Best Engines list. In a serious rebuke against them, WardsAuto is excluding all VW/Audi powertrains for at least this year after the German automakers' ongoing emissions regulations evasions. There's no guarantee of the companies returning for 2017, either. In a story on its website, WardsAuto executive editor Tom Murphy writes that the ban lasts "until we are convinced the culture of deceit has been purged, fines have been paid and regulators are satisfied." That could be a while, the way things are looking. The exclusion knocks three powertrains out of the running for this year's list. As a winner last year, WardsAuto would usually test VW's 1.8-liter turbocharged four-cylinder again for 2016. Plus, it planned to check out the 2.0-liter turbocharged four-cylinder from the Audi A6 and the plug-in hybrid from the A3 Sportback E-Tron. In the story, Murphy finds VW's actions particularly despicable because of what they could be doing to the popularity of diesel passenger cars in this country. "BMW, Mercedes-Benz, General Motors, and Fiat Chrysler also sell light-duty diesel engines in the US, but their sales outlook suddenly has grown murky, thanks to VW's shenanigans," he writes. So far, Jaguar Land Rover is remaining confident of US consumers continuing to buy diesel models, though. We'll be able to see the real effects of VW and Audi's ban in a few months because the 2016 Ward's 10 Best Engines will be published December 10. With two major automakers out of the running, their rivals will likely greet this as a better chance to make the grade.