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New info on how VW, Porsche, Audi V6 TDI engine cheat works

The German newspaper Bild am Sonntag is reporting that US investigators have found three pieces of software that work in concert to turn off the emissions control equipment in certain diesel models after a set period of time. The engine in question, the 3.0-liter TDI turbodiesel, was found in certain Volkswagen Touareg, Audi Q7, and Porsche Cayenne models – the sale of which was suspended in the US late last year. Since most emissions compliance testing takes around 20 minutes, the software in the three VW Group models shuts off the emissions control equipment after 22 minutes, a straightforward end run around the testing. Remember that the 3.0-liter TDI engines aren't included in the big buyback and recall program announced for the smaller 2.0-liter, four-cylinder TDI engines. The 3.0-liter engines will likely get their own program, but we don't know when to expect it or exactly what it will look like. Last month, California rejected a proposed fix for the larger TDI engines, and VW went back to the drawing board. Since the company is unlikely to create two fixes, one for California and one for the rest of the nation, the company can't really proceed until they figure out a solution California will accept. The EPA hasn't officially commented on the report, and we don't know how Bild am Sonntag came across the information, but we'll be closely watching what emerges after this report. Related Video:

Chris Harris condemns demonization of Porsche Carrera GT in wake of Walker death

When something bad happens, it's easy to resort to scapegoating. At least for some of us, that seems to be exactly what has happened following the tragic death of actor Paul Walker and racer Roger Rodas, who were killed on November 30 in a Porsche Carrera GT. Even though officials have not yet determined the cause of the crash, that isn't stopping many theories from being put for - theories that include blaming the Porsche supercar. Rather predictably, not only is the CGT's difficult nature getting examined, but indeed, the nature of all high-performance cars is being put under the public's microscope, with some wondering what the need for all the power is.
A Google search of "Porsche Carrera GT" will find no shortage of articles about the razor-sharp handling and outright speed of the CGT. Pistonheads' Chris Harris has a different, insightful take on both the Carrera GT and the nature of all fast cars. He reflects on the matter, ironically, en route to drive the successor to the car that killed Walker and Rodas, the 900-horsepower 918 Spyder hybrid supercar.
We think it's well worth a read, as it makes a number of good points about modern high-performance automobiles and the way they're used. Click over and take a look.

Porsche stalls on Ferrari 458 rival

A few years ago, reports surfaced that Porsche was planning a new supercar. But the latest intel suggests that the plan has been put indefinitely on the back burner.
The project alternately referred to as 960 or 988 was put forth by CEO Matthias Müller shortly after he assumed control of the German automaker. It called for a mid-engined V8 supercar to slot in between the 911 and the 918 Spyder to take on the likes of the Ferrari 458 Italia, McLaren 650S and sister-company Lamborghini's Gallardo and subsequent Huracán.
Now three years since the idea was first mooted, the vehicle has yet to materialize. According to Autocar, Porsche is putting a greater emphasis on refreshing its existing lineup. Which is probably just as well, because the mid-engined supercar would have a heck of a challenge on its hands to differentiate itself in terms of performance from the 911 GT3 and 911 Turbo, which already give the 458 and company a run for their money.