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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.

Audi S1 rally car races its RC counterpart

Veteran racer Mattias Ekstrom campaigns the meanest looking Audi S1 on the block in the FIA World Rallycross Championship. With a 2.0-liter turbocharged four-cylinder pumping out a claimed 600 horsepower and all-wheel drive, this little hatch can reportedly hit 60 miles per hour in a wickedly quick 1.9 seconds. While those specs are mighty impressive, they don't really matter too much for Ekstrom's latest race in the S1 against a pint-sized doppelganger in the form of an RC replica of the rallycross machine around a warehouse. Despite, the massive gulf in size and power, the two Audis appear fairly evenly matched. The RC version can't quite match the real one in outright speed but can go under obstacles that Ekstrom's S1 is forced to drive around. Check out the clip above to see which S1 makes it to the finish first. Related Gallery EKS Audi S1 Supercar News Source: Audi Deutschland via YouTubeImage Credit: Related images copyright EKS Motorsports Toys/Games Audi Hatchback Racing Vehicles Videos rc car audi s1

Forza 5 documents bringing Audi R18 E-Tron and Le Mans to game

Forza Motorsport 5 is set to come out on November 22 alongside the all-new Xbox One. As part of the launch lineup for a big new system, it shouldn't be a shock that Turn 10 Studios, the maker of the Forza series is going all out in promoting its new game. That's meant making interesting partnerships, like the one it enjoys with Top Gear.
Perhaps a less talked about alliance is between Audi and Turn 10. It's put on full display here, though, as Turn 10 documents the process of building Forza Motorsport 5 alongside Audi's quest at Le Mans, with both sides talking about what it takes to make a game and racing team work (they aren't as different as you might think).
There's also quite a bit of Le Mans and Audi-specific content coming with FM5. As with previous iterations of Forza Motorsport, gamers will have access to both the old and new Circuit de la Sarthe (the most notable difference between the two being the presence of Chicanes on the Mulsanne Straight). Audi will also be volunteering several of its vehicles for the new title, ranging from racers like the R18 e-tron Quattro and Audi Sport R8 to production rockets like the 2013 R8 V10 plus, 2006 RS4 and the 1983 Sport Quattro.