2013 Porsche 911 Carrera 991 on 2040-cars

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CARB has 20 days to confirm VW's 3.0-liter TDI emission fix

VW's diesel scandal has been in the headlines since last September, but solving the problem it proving difficult. Volkswagen Group has submitted a proposal to the California Air Resources Board (CARB) and the Environmental Protection Agency (EPA) to fix about 85,000 vehicles with the 3.0-liter diesel V6 in the US, Reuters reports. CARB now has 20 business days to test if the plan actually reduces emissions. If accepted, VW could finally begin a recall and end the stop sale on vehicles with these engines. In a statement, CARB pledged to, "respond following a thorough and complete review to make sure the plan addresses the presence of the illegal defeat device and follows the necessary environmental, vehicle and public health and safety regulations." Neither CARB nor the EPA outlined the proposed repairs, but Porsche CEO Oliver Blume already suggested the fix for the engine in the diesel Cayenne. Examples from 2013 and 2014 allegedly need a new catalytic converter and software update, and those from 2015 and 2016 only need the improved code. It's not yet clear whether this procedure would work for all models with the 3.0 TDI. While the EPA issued the notice of violation against VW's 2.0-liter four-cylinder diesel in September, the first one for the 3.0-liter V6 came in early November. By the end of the month, the agency broadened the scope to about 85,000 vehicles, including some examples of the VW Touareg, Audi A6, A7, A8, Q5, Q7, and Porsche Cayenne. The affected companies issued stop sales on new models with the engine. Audi eventually admitted to regulators that it didn't disclose three auxiliary emission control devices in the powerplant's code and promised to develop a software update to fix the problem. CARB gave the automaker 45 business days to submit the proposed solution. If accepted, this repair would allow VW Group to end part of the emissions scandal, but there's no guarantee the regulators consent to this solution. Just a few weeks ago, CARB looked at the automaker's plan to fix the 2.0-liter TDI and rejected it, claiming a lack of detail.

Magnus Walker drives 911 Turbos old and new

It's been forty years now since Porsche released the original 911 Turbo. And as many things that have remained a constant, a lot has changed, too: the engine has gone from air-cooled to liquid, moved up to nearly a midships layout, and drives almost exactly double the original's output to all four wheels instead of just the back set through a seven-speed dual-clutch transmission instead of a five-speed manual. It'll also reach highway speeds about twice as fast as the original. That's progress for you, and who better to compare Porsche Turbos old and new than Magnus Walker. The outlaw of the 911 scene may not look the part, but to those in the know, he's got the last word when it comes to Porsches. After searching for some time, Walker recently got his hands on a cherry of an original 930 Turbo from 1975 – the first year it was made – and had it shipped from Australia to California to add to his collection. eGarage caught up with Walker and brought along a new 991 Turbo for juxtaposition. Fortunately it also brought along a video camera or two to document the experience, so check it out in the latest video above.

Porsche 959 Prototype started it all

While Porsche was unveiling the new Nürburgring-dominating 918 Spyder downstairs in Hall 3 here at the Frankfurt Messe, there was another Porsche supercar quietly and discretely on display upstairs in the same hall. That, of course, was the 959. But not just any 959: this was the original Gruppe B prototype.
The 959 was first developed as a rally car in the early 80s to compete with the likes of the original Audi Sport Quattro S1, Ford RS200 and Lancia Delta S4. But Zuffenhausen soon saw its potential as a production road-going supercar, emerging as a technological marvel to challenge the decidedly linear approach of the Ferrari F40. It still stands as a groundbreaking supercar in its own right, but also lead to the first all-wheel-drive 911 Turbo and set the stage for the Carrera GT and aforementioned 918 Spyder that followed to cap the top of the evolving Porsche range.
This original Gruppe B prototype, which presaged the production 959, packed a 450-horsepower 2.8-liter twin-turbo flat-six into an even sleeker form than the final version that followed. We caught up with it on display as part of a display of 80s German classics, of which this 959 prototype immediately stood out as the pick of the proverbial litter. Check out the hotness in the high-resolution image gallery above.