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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:

Audi exec denies plans for turbo R8

Sometimes smoke doesn't lead to fire. Rumors indicated Audi might drop a turbocharged engine into the latest R8, but now a top executive is throwing a bucket of cold water onto the burning speculation. "The performance potential of this current engine means we don't need to even look at turbocharging at this point," Jurgen Konigstedt, Audi development boss for V6, V8, and V10 engines, said to CarAdvice. He also said sticking with natural aspiration offered a better sound and sharper throttle response than going with forced induction. "There is less emotion with a turbocharged engine," he said. Konigstedt admitted there was a serious discussion about turbocharging the R8. The argument just didn't win out. "If we feel that people absolutely want a turbocharged engine, then we will have to consider it," he said to CarAdvice. Audi just launched a new generation of the supercar. The 2017 R8's 5.2-liter V10 will be available in two tunes: with 540 horsepower in the standard coupe or 610 hp in the Plus. Rumors have persisted about a smaller, forced induction powerplant at the bottom of the range. Some reports suggested a twin-turbo V6 behind the driver, but others said the electrically supercharged 2.5-liter inline five was a candidate. The reason for the entry-level addition was tied to lowering the taxes on the R8 in markets like China. Related Video:

Is the Audi R8 E-Tron project back on again?

If you ask Audi about its R8 E-Tron prototype, the all-electric two-seater that was first shown at the 2009 Frankfurt Motor Show, the automaker will tell you that its development program is on hold. Yet, as we reported in January, limited production of the combustion-free coupe may be moving forward... information still officially unconfirmed by the automaker.
New images of the electrified R8 undergoing winter testing in Europe have emerged (above and in our gallery), and the car has been spotted running in Spain as well. Both sightings support reports that the E-Tron, with its 150-mile battery range and 8:09 Nürburgring time, may be back in business. Does the program have a green light, or is Audi merely trying to take some of the thunder from the BMW i8?
Whatever the case, if the R8 E-Tron does eventually make it into showrooms - and we are now led to believe it will - expect production volume to be very low. Assuming it doesn't get shelved again, of course.