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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.

Audi considering turbo option for longer, wider Hurac?n-based R8

The debut of the Lamborghini Huracán was (and remains) big news in and of itself, but equally as exciting is the imminent arrival of the Audi R8, which the Huracán presages. While the two will share a common architecture, don't expect that new R8 will simply be a cheaper version of the Huracán (like the current one arguably is to the Gallardo).
For one, the next R8 will be larger than the Huracán. According to emerging intelligence, Audi will make its sports car both longer and wider than the Lamborghini version. It'll also share the new Lambo's innovative carbon-fiber structure that will replace both the firewall and central tunnel. But to power it all, Audi will get more creative.
The next R8 will, like the current model and like the Huracán, offer a V10 engine at the top of the range. It will also offer the same 4.2-liter V8 as the outgoing model. But that won't be the end of the matter. Word has it that Audi is also working on a smaller, turbocharged engine to offer in certain markets that mandate smaller-capacity engines.

Audi prices S8 Plus at $115k, RS7 Performance at $129k

Audi is introducing two new performance sedans at the LA Auto Show later this month. Both pack the same 4.0-liter twin-turbo V8, producing 605 horsepower and 516 pound-feet of torque (553 on overboost). The more conventional of the two is the 2016 Audi S8 Plus, which is based on the A8 and emerges as its new performance flagship. 0-60 is quoted at 3.7 seconds, with top speed electronically limited to 155 miles per hour. For all that muscle and luxury, Audi will charge $115,825 (including $925 for destination). Compared to the Mercedes-AMG S63, the new Audi offers more power (but less torque) and quicker acceleration for a much lower price. The Jaguar XJR charges about the same but gives back less muscle and performance. Joining it is the 2016 Audi RS7 Performance fastback. It packs that same engine and eight-speed automatic transmission with Quattro all-wheel drive. But in the Sportback, 0-60 is quoted at 3.6 seconds, and the top speed is derestricted to 190 mph. For the RS7 Performance, Audi will charge $129,925. That makes it more potent and just as quick, but significantly less expensive than the Porsche Panamera Turbo S. Both feature other upgrades to the wheels, aero, and interior, and come with carbon-ceramic brakes to keep all that momentum in check. They'll both reach showrooms next month. But while the RS7 will still be offered in the existing 560-hp spec for $108,900, the S8 Plus has already replaced the existing model on the Audi of America website. Audi of America announces pricing for S8 plus and RS 7 performance November 11, 2015 | HERNDON, Virginia - 4.0-liter twin-turbo TFSI engine produces 605 hp, maximum 553 lb-ft of torque - Sportier interior and exterior design elements enhance performance-oriented appearance - Both S8 plus and RS 7 performance to go on sale December 2015 Audi today is announcing pricing for the 2016 S8 plus and RS 7 performance models. With more powerful engines and enhanced design elements, the S8 plus and RS 7 performance offer elevated performance and sportiness, further reinforcing the brand's position in the premium sport sedan segment. S8 plus Enhanced for maximum performance and driving enjoyment, the 2016 Audi S8 plus is the latest variant of the A8 flagship sedan to enter the Audi lineup. Featuring a 4.0 TFSI engine with an eight-speed Tiptronic® transmission, the S8 plus produces an impressive 516 lb-ft of torque and 605 hp – an increase of 85 horsepower compared to the outgoing S8.