2014 Porsche 911 Carrera 4s on 2040-cars

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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:

How the 2016 Porsche 911 Carrera S falls short of perfection

We know Harry Metcalfe loves a good Porsche 911. After all, he's shown off his personal 1989 Porsche 911 Turbo and 993 GT2 replica in previous videos. However, he can't seem to muster so much passion for the forced induction engine in the 2016 911 Carrera S. The chassis impresses him, but in Metcalfe's latest clip, he explains why he's not a huge fan of the new powerplant. Before any actual driving, Metcalfe takes a thorough walk around the new car where he goes to the unusual trouble of using a magnet to show which parts are steel and which are aluminum. Remember, though, this is a 911. So, this latest refreshed model, just like all previous remodels, isn't all that aesthetically different from the previous version. So, Metcalfe's real focus here is on how it drives. He comes away with mixed impressions. Metcalfe loves the 2016 911's handling, especially the directness from the rear-wheel steering, but he isn't in love with the new engine. At least with the seven-speed manual, he complains of turbo lag below 3,000 rpm. He also misses the direct throttle response from the previous naturally aspirated unit and doesn't think the turbocharged mill's fuel economy is very impressive. Take a ride with Metcalfe to get the full experience and intriguing take about the biggest change in more than a decade for the iconic 911. If you can't get enough Porsche-flavored goodness, click here for our own First Drive report on the quintessential sportscar. Related Video:

Motor Trend hits Laguna Seca with Ferrari F12, Chevy Corvette, Porsche 911

According to the crew at Motor Trend, we should think of the video below "as an addendum to Best Driver's Car," a test the magazine put together that elevated the 2013 Porsche 911 Carrera 4S above all others in the category of driving joy. It seems the brand-new 2014 Chevy Corvette Stingray wasn't able to take part in the magazine's official test, and neither was the Ferrari F12 Berlinetta.
And so Motor Trend did the only logical thing: It procured both the 'Vette and Prancing Horse as soon as it could, and put them both on track with the Driver's Car-winning 911. Of course, these cars don't actually compete against each other - the Ferrari offers up 731 horsepower and wears an asking price of $434,144 as tested, which means you could buy four loaded Corvettes for the price of one F12, and still have money left for a garage to store them in - but that's not the point of this particular test.
The point of this test isn't to listen to the beautiful sounds coming from the Porsche's flat-six-cylinder, the Corvette's pushrod V8 or the Ferrari's luscious V12, either, but the video below is worth watching for those three reasons alone. You know what to do.