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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.

2019 Volvo V60 vs. wagon competitors: How they compare on paper

The next-gen Volvo V60 was finally revealed this week. The outgoing model has been on sale since 2011, getting a few minor updates along the way. The new model is based off Volvo's Scalable Platform Architecture that underpins other models like the XC90 and XC60 crossovers and V90 wagon. The V60 will launch with two engines, with a powerful hybrid coming sometime down the line. Since the last V60 hit the market, Audi, Buick and BMW have all released their own flavor of wagon. Like Volvo, BMW sells a traditional sedan-based model. Audi and Buick's wagons are both high-riding models with some very slight off-road pretense, much like Volvo's Cross Country models. We don't have details on the upcoming V60 Cross Country, but, even when accounting for ground clearance, the V60, BMW 3 Series Sport Wagon, A4 Allroad and Buick Regal TourX have a lot of overlap. Check out the specs breakdown below. Discover and compare other wagons and crossovers with our Car Finder and Compare tools. Engines, transmissions and drivetrains Out of the four wagons, the new V60 is the only one that offers two-wheel drive and a hybrid variant. The base V60 T5 uses a 250-horsepower turbocharged 2.0-liter inline four and sends power to the front wheels. Stepping up to the V60 T6 nets buyers an additional 66 horsepower thanks to a twincharged — supercharged and turbocharged — 2.0-liter and all-wheel drive. A T8 model that uses a 390-horsepower plug-in hybrid powertrain will be available soon. All V60s use an eight-speed automatic. The Audi, BMW and Buick are all powered by 2.0-liter turbocharged inline-fours. Additionally, the 3 Series has a 2.0-liter turbo diesel. All three wagons have standard all-wheel drive. The BMW and Buick use an eight-speed automatic, while the Audi sends power through a seven-speed dual-clutch transmission. As base engines go, there's a four-horsepower difference between the most and least powerful models, though the Buick wins out on torque. The V60 T6 matches the Regal TourX's torque figure and trounces every competitor's horsepower rating. The V60 T8 packs more power and torque than any of the competition. Cargo and interior space The outgoing V60 was on the small side for a wagon. This new model rectifies that a bit, though its 48.2 cubic-feet of cargo space with the second-row folded is still substantially smaller than the competition.

2014 Audi A3 Cabriolet cleans up the Messe [w/video]

If we're being honest, the outgoing Audi A3 Cabriolet never really flicked our Bic. That was just fine, of course, because Audi never brought it to North America. This new model, however, might have a different future.
And while Audi has yet to officially decide on this car's North American future, this Frankfurt Motor Show debut clearly has a better sense of proportion and aggression to it, and we're excited about its powertrain solutions, too. For the European market, Audi is promising TFSI gasoline engines in either 1.4- or 1.8-liters, along with a 2.0-liter TDI diesel, all being available in front- and all-wheel drive. Audi has also confirmed its first-ever S3 Quattro Cabriolet, which figures to combine a quick 18-second top drop and its hard-hatted sibling's even quicker 296-hp 2.0-liter turbo.
Even though Audi has been better about bringing its high-performance models to North America and has a new emphasis on growing its A3 business in our territories (including a US-minded sedan bodystyle), we would still be a bit surprised to see an S3 Cabriolet popping its entry-level top in dealers in a couple years' time. Having said that, we do think this A3 Cabriolet is almost a lock. Be sure to take a good, long look at our gallery, video and the official press release below.