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Audi details updated 3.0L V6 TDI engine

The brands in the Volkswagen Group have shown that they can develop some of the world's best diesel engines for passenger cars. At the Vienna Motor Symposium taking place May 8 and 9, Audi has an updated one to add to its lineup. It's launching a new version of the 3.0 TDI V6 with better efficiency and more power than the version currently in the US.
The new diesel will be offered in two tunes: 215 horsepower or 268 hp. However, Audi isn't giving away all of the new engine's secrets just yet. It says "depending on model" the mill makes as much as 442.5 pound-feet of torque and gets as much as 13 percent better fuel economy. That likely means the more powerful version gets the twist, and the other one has the better consumption, but we'll have to see.
To compare, the current 3.0 TDI offered in the US produces 240 hp and 428 lb-ft of torque. In the A6, it's rated at 24 miles per gallon city, 38 mpg highway and 29 mpg combined, according to the EPA.

Audi rolls out new A6 L E-Tron hybrid for China

Audi is expanding its range of hybrid models with the introduction of the A6 L E-Tron at the Shanghai Motor Show. It's earmarked specifically for the Chinese market and is based on the long-wheelbase A6 L already produced there. The new E-Tron model marries a 2.0-liter turbo four good for 211 horsepower and 258 pound-feet of torque to an electric motor with 122 hp and 162 lb-ft integrated into the eight-speed automatic transmission. A lithium-ion battery pack provides 14.1 kWh power. Mounted in the trunk, it limits cargo capacity to 11.9 cubic feet. The system produces net output of 245 hp and 369 lb-ft – enough to send the long-wheelbase hybrid to 62 miles per hour in 8.4 seconds en route to a top speed of 130 mph. All the while, it'll return 106.9 miles per gallon by the Chinese standard, traveling over 30 miles on electric power alone (at speeds of up to 83.9 mph) and up to 546.8 miles without needing to stop. The A6 L E-Tron is one of three new hybrids Audi is showcasing in Shanghai this year, alongside the Q7 E-Tron and Prologue Allroad concept. Ingolstadt, 2015-04-16 The new Audi A6 L e-tron for China - First Audi plug-in hybrid model from Chinese production - Output of 180 kW (245 hp) with extremely low consumption - 50 km (31.1 mi) electric range and total range of 880 km (546.8 mi) With the A6 L e-tron, Audi is taking an important step toward even greater fuel efficiency in China. The sedan has been developed specifically for the Chinese market. Its plug-in hybrid drive with 180 kW (245 hp) provides for powerful performance. The model consumes on average just 2.2 liters of fuel per 100 kilometers (106.9 US mpg). After launching the e-tron era in China with the imported A3 Sportback e-tron* in 2015, Audi is taking the next step with the local production of the A6 L e-tron beginning in 2016. The model is based on the long version of the Audi A6, which is already built in China, and is configured as a highly efficient parallel hybrid, meaning that its two drives are arranged one directly behind the other. The 2.0 TFSI is a state-of-the-art, four-cylinder, gasoline engine producing 155 kW (211 hp) and 350 Nm (258.1 lb-ft) of torque. The disk-shaped electric motor provides 91 kW and 220 Nm (162.3 lb-ft) of torque. Together with a decoupler, this is integrated into the eight-speed tiptronic transmission, which transfers the power to the front wheels. System output is 180 kW (245 hp); maximum system torque is 500 Nm (368.8 lb-ft).

Audi says new 48 volt micro-hybrid system improves fuel economy, paves way for electrification

Most cars use a 12-volt system to power their electrical components. But, with more and more electric bits and bobs being added to new vehicles, a dozen volts is looking a bit weak these days. In fact, Audi says that standard 12-volt systems are being stretched "to their very limits." Enter 48 volts. If used in a car that gets 40 mpg, that would translate to around 43.5 mpg. Audi is testing a supplemental 48-volt electric system in two prototype vehicles – modified mild-hybrid versions of the A6 TDI and the RS 5 TDI – in order to add in more electric technology (an electric compressor, for example, to improve acceleration) and "convenience systems for dynamic chassis control." Audi says it has more applications in the pipeline, but the overall gist is that the German automaker sees 48 volts as an "important building block in electrification strategy." As you can see in the picture above (click to enlarge), the RS 5 TDI concept uses a li-ion battery installed in the back of the car and an alternator to provide 48 volts when the engine is off. Audi says that the 48-volt system can save up to 0.4 liters of fuel per 100 kilometers. To put that into US numbers, if used in a car that gets 40 miles per gallon today, that would translate into a bump up to around 43.5 mpg. The Advanced Lead Acid Battery Consortium (ALABC) is also working on a 48-volt system to improve fuel economy and we've got a deep dive of Audi's electric turbocharger here. Even more powerful and efficient – the new 48-volt technology from Audi Important building block in electrification strategy More voltage and more power for new technologies Scalable platform concept suitable for wide-ranging uses Ingolstadt, August 25, 2014 – Audi is to upgrade part of its vehicle electrical system from twelve to 48 volts. The move represents another technical building block for facilitating the integration of new automotive technologies while increasing the power and efficiency of its cars. "We are using the full bandwidth of electrification in our drive principles strategy. Running part of the vehicle electrical system at 48 volts plays a central role in this," commented Prof. Dr. Ulrich Hackenberg, Member of the Board of Management for Technical Development at Audi. "It enables us to make more energy available.