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The days might be numbered for the Audi R8's 4.2-liter V8, as a report claims the base model will offer a new 2.9-liter, twin-turbocharged V6 in its place.

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With turbocharged downsized engines gaining popularity, the old concept of supercooling intake air to add power may finally see production.

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Lending more evidence to an earlier rumor, several Audi execs seem quite serious about bringing forced induction to the R8 for the bottom of the supercar's range. The engine might be the company's 2.5-liter five-cylinder.

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Turbochargers are becoming increasingly popular with both consumers and manufacturers, representing 1 in 5 new vehicles, a figure that's set to grow quickly.

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According to Porsche, the upcoming line of turbocharged 911s won't be missing in the current car's revvy character or iconic exhaust note.

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Honda is reportedly using its upcoming 1.5-liter turbocharged four-cylinder engine as the base choice in the next-gen Civic. It's possible that they could both be fully unveiled by the end of 2015.

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There's some concern among a portion of drivers that the move from big displacement, naturally aspirated performance engines towards smaller, turbocharged units is somehow diluting the experience behind the wheel. Xcar Films tries to suss out whether that's actually the case during its drive of the Mercedes-AMG C63 S.

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An investigation from Navigant Research predicts less than 50 percent of new vehicles globally will use conventional gasoline-fueled engines by 2017. However, the study's definition even takes turbocharging into account as being outside the norm. The report also estimates that stop/start systems will be in nearly 60 percent of models by 2025.

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Subaru's 3.6-liter flat-six engine might not be long for this world, at least in some markets. According to one of the company's engineers, the Japanese brand may drop the mill from its models in favor of a focus on the 2.0-liter turbocharged flat-four.

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We Dive Deep With Audi's Revolutionary New Turbo Tech

An electric turbo system boosts efficiency between 15 and 20 percent, according to Audi.

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Despite the growing trend of automakers offering diesel-powered or electrified powertrains, there's still a whole lot that can be done with the good-old gasoline internal combustion engine. And at Hyundai, that's exactly what's being worked on – new gasoline engine technologies that improve both performance and efficiency. During an event at the automaker's technical center in Superior Township, MI on Friday, Hyundai gave Autoblog a glimpse into the future, offering up preliminary details

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Turbocharging isn't really Toyota's specialty, and the Japanese automaker isn't being shy about acknowledging it. Koei Saga, a senior managing officer in charge of drivetrain research and development, says that eschewing turbos and increasing displacement of engines using the Atkinson cycle can produce better power gains without sacrificing fuel economy, Automotive News reports.

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Aside from its hybrid technology, Toyota has fallen behind the competition in terms of vehicle powertrains which could leave popular cars like the Toyota Camry and Toyota RAV4 lagging behind the competition. While most of its rivals have started using gasoline direct injection, turbochargers and some have moved to Continuously Variable Transmissions (CVT) to balance performance and fuel economy, many Toyota models are still using underpowered engines and outdated transmission technology. Accordi

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Some may call it a variation on the low-hanging fruit theory. Others may call it a daft conclusion.

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In the global battle to reduce emissions, automakers have made considerable strides in boosting the fuel efficiency of internal combustion engines thanks to fuel-saving gadgets like turbochargers.

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2011 Toyota Corolla – Click above for high-res image gallery

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Toyota has big plans for its model lineup, as the automaker intends to introduce 11 new or redesigned vehicles by 2012. This will be accomplished by offering hybrid versions of existing models, as well as introducing all-new hybrid vehicles. However, Toyota's focus isn't going to be entirely on improving the electric half of the hybrid equation. The automaker is looking at ways to produce more efficient gasoline engines, and turbochargers and direct fuel injection are both in the cards.

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It's no secret that BMW, like many other automakers, is working on smaller three-cylinder engines for its future products in order to reduce fuel consumption and CO2 emissions. Some of those engines will go into the next generation of Mini products. Mini's goal is to provide a significant improvement in fuel economy without sacrificing performance.

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