2010 Audi A4 Base Sedan 4-door 2.0l on 2040-cars

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Electric turbos promise big performance and efficiency gains in the near future

An electric turbo system boosts efficiency between 15 and 20 percent, according to Audi.
Turbochargers, like acoustic guitars, use moving air to create magic. And electric turbochargers, like electric guitars, provide the ability to amp up that magic to amazing new levels.

11M VW diesels affected, Porsche and Audi under investigation

Volkswagen's diesel scandal is growing exponentially larger. In a new statement, the company admits that 11 million vehicles worldwide might be equipped with software capable of evading emissions testing. In addition, the Environmental Protection Agency is beginning an investigation into the 3.0-liter V6 in Audi models and the Porsche Cayenne in the US, according to The Detroit News. The automaker claims that from its investigation so far, the "relevant engine management software is also installed in other Volkswagen Group vehicles with diesel engines." However, the company finds that the "noticeable deviation" in test results and real-world numbers only relates to the Type EA 189 powerplant. That still leaves 11 million vehicles potentially skirting emissions rules, though. Governments around the world have started taking a closer look into the company, too. In the US, the EPA has begun testing VW's V6 diesel because "they were certified well before we knew what we know now," Christopher Grundler, director of the EPA's Office of Transportation and Air Quality, said to The Detroit News. The agency has started checking diesels from other automakers to make sure they're meeting the rules, as well. Germany, the European Union, and South Korea have instituted similar investigations. In response, VW is setting aside 6.5 billion euros ($7.25 billion at current rates) to cover servicing all of these diesels. The company admits that the figure might have to be adjusted depending on what happens next. The money is being deducted from its third-quarter earnings. Related Video: VOLKSWAGEN AG HAS ISSUED THE FOLLOWING STATEMENT: Sep 22, 2015 Volkswagen is working at full speed to clarify irregularities concerning a particular software used in diesel engines. New vehicles from the Volkswagen Group with EU 6 diesel engines currently available in the European Union comply with legal requirements and environmental standards. The software in question does not affect handling, consumption or emissions. This gives clarity to customers and dealers. Further internal investigations conducted to date have established that the relevant engine management software is also installed in other Volkswagen Group vehicles with diesel engines. For the majority of these engines the software does not have any effect. Discrepancies relate to vehicles with Type EA 189 engines, involving some eleven million vehicles worldwide.

Audi reveals Prologue Allroad concept ahead of Shanghai

Audi kicked off the Prologue series of design studies with the coupe concept unveiled in LA, then followed up with the Prologue Avant wagon at the Geneva show. Now, we're seeing the third iteration in the form of the Prologue Allroad concept. Set to be unveiled next week at the 2015 Shanghai Motor Show, the Prologue Allroad picks up where the previous two left off, but takes it in a more rugged direction. At 16.8 feet, it's longer than both of the previous concepts, and stretches out to the same length as a standard-wheelbase A8. It also rides three inches higher than the Prologue Avant concept. Not only is it larger than the preceding showcars, it's also more powerful. Under the hood sits a hybrid powertrain that pairs a 4.0-liter twin-turbo V8 to an electric motor integrated into eight-speed automatic transmission. Together they produce a whopping 738 horsepower and 664 pound-feet of torque, driven to all four wheels to send the concept to 62 miles per hour in a scant 3.5 seconds – all the while returning a claimed equivalent of 98 miles per gallon. If that's not the best of both worlds, we don't know what is. Plus, the car packs an inductive charging system that Audi says it's developing for production. Massive 20-inch brake discs keep that performance in check, sitting inside 22-inch wheels, all mounted to an adaptive air suspension and four-wheel adaptive steering. Other exterior features include door lock sensors integrated into the window frame, Matrix laser headlights and LED taillights. Inside it's all angular yet elegant, swathed in dark blue, beige and brown. Display screens abound, stretching across the dashboard with a deployable OLED infotainment display in the center console. There's another OLED screen for the passengers in the pair of rear seats, who can also dock OLED tablets in the front seatbacks. A pop-up "sound spoiler" promises to envelop the cabin in music, and there's inductive charging for mobile devices as well. Together with its conceptual stablemates, the Prologue Allroad concept points towards a stylish and technologically advanced future for Ingolstadt, and we're looking forward to seeing this show car transition into production as the next A6 Allroad. In the meantime, you can scope out all the details in the press release below and view the concept from every angle, inside and out, in the slideshow above.