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Audi SQ7 TDI packs 48V electric compressor, 664 lb-ft

Take a look at the new Audi SQ7 TDI. It's the first time Audi has done an S performance version of its flagship sport-ute, and packs under the hood a 4.0-liter V8 turbo diesel engine mated to an eight-speed automatic and all-wheel drive. It produces a potent 435 horsepower, and an absolutely bonkers 664 pound-feet of torque. The Audi SQ7 TDI produces a massive 664 lb-ft of torque. Impressive as it is, though, that doesn't even tell the full story. That's enough to make us forget it wasn't there in Geneva. It's also more torque than just about anything the Volkswagen Group makes – short of the Bentley Mulsanne Speed and the new Bugatti Chiron. Not even the Lamborghini Aventador SV or Bentley Continental GT Speed can touch that torque figure. Nor can competition like the Porsche Cayenne S Diesel (with its 385 hp and 627 lb-ft) or the BMW X5 M50d (381 hp and 546 lb-ft). It may not surpass the old twelve-cylinder Q7 6.0 TDI (with its 493 hp and 738 lb-ft), but still trounces the VW Touareg V10 TDI (309 hp and 553 lb-ft) – which was strong enough to tow a jet airplane, while the new SQ7 is fast enough to out-drag one (as you can see from the video below). Impressive as it is, though, that headline-grabbing torque figure doesn't tell the full story. To get there, Audi employed two conventional, sequential turbochargers and a third compressor that – in an industry first that's been a long time coming – is powered electrically. The engineers in Ingolstadt installed a beefier 48-volt electric subsystem to power the electric compressor (among other systems) and its latest valvetrain tech for the first time in a diesel. The result, Audi says, is a lack of any perceptible turbo lag – and a 0-62 time quoted at 4.8 seconds, en route to the typical electronically limited top speed of 155 miles per hour. As if that weren't enough, Audi also equipped the SQ7 TDI with an optional suspension package that coordinates the activities of three systems. There's a differential, a four-wheel steering system, and a clever electromechanical roll stabilization system that employs an electric motor (made possible once again by that 48-volt system) and a three-stage planetary gearbox to keep it all level and improve ride quality over rough surfaces. The sum total is an impressive technological tour de force on Audi's part, but one that we may just have to admire from afar.

Here's how to follow this weekend's 24 Hours of Le Mans

In the pantheon of motorsports, the 24 Hours of Le Mans stands as one of the great endurance challenges to man and machine. This year's event in France already looks to be one for the ages with Porsche setting record-breaking times in practice and the competition debut of Nissan's front-engine, hybrid racer. Thankfully, there's a massive list of ways to follow this automotive attraction. Reilly Brennan, the Executive Director of the Revs Automotive Research Program at Stanford University, and a friend of Autoblog, has once again assembled a helpful couch-kit to organize many of the options. Unfortunately, the old-school way of just turning on the television might be the most frustrating way to watch Le Mans this year. Fox Sports 1 and 2 are carrying about half the race, but the coverage bounces between them seemingly at random. The broadcast begins on Fox Sports 2 at 8:30 AM Eastern ahead of the 9:00 AM start and lasts there until 12:00 PM. Things don't pick up again until 7:00 PM Eastern on Fox Sports 1 for an hour, and the channels swap back and forth more from there. The Fox Sports Go streaming app offers more, but even it stops showing the race a few times. Thankfully, streaming Le Mans is easy. If you can't dedicate 24-hours on the couch, Radio Le Mans lets you listen to audio commentary anywhere with some of the best announcers in the biz. The Automobile Club de l'Ouest, the governing body for the race, also offers an official video stream in an app for $9.99. For a really low-tech solution, the official Twitter is another choice. Brennan is keeping his list updated with coverage changes. You can also check out and download the spotter's guide (from Nissan) in the gallery above. Enjoy this year's race. If you miss anything, don't worry; expect a full report from Autoblog. In fact, editor-in-chief Mike Austin is attending Le Mans this year, so follow him on Twitter for on-the-fly impressions. Featured Gallery 2015 24 Hours of Le Mans Spotter's Guide News Source: Reilly BrennanImage Credit: Nissan Motorsports Audi Nissan Porsche Toyota Hybrid Racing Vehicles

Audi buys Ballard fuel cell patents for $80 million

While some auto companies (e.g., Toyota and Hyundai) are giving away some hydrogen fuel cell patents, others are paying a pretty penny to gain access to the H2 tech. Audi announced today that it has purchased a suite of fuel-cell patent from Ballard Power Systems. The deal between Volkswagen Group and the Canadian fuel cell pioneer is worth over $80 million US. Unsurprisingly, the value of Ballard's stock shot up about a dollar (to $2.61 as of this writing) on the announcement. VW and Ballard will also extend their development agreement, originally scheduled to end in 2017, to March 2019, and possibly another two years after that. Thus far, the deal – which revolves around the "design and manufacture of next-generation fuel cell stacks" for VW's H2 demonstration program – and Ballard says it is a leader in "critical areas of fuel cell product design – including the membrane electrode assembly (MEA), plate and stack components – along with certain testing and integration work." At the LA Auto Show last fall, VW showed off a Golf SportWagen and a Passat with a hydrogen hybrid HyMotion powertrain as well as a Audi A7 Sportback H-Tron Quattro. Audi buys fuel-cell patents from Ballard Power Systems Development agreement with Ballard extended until 2019 Audi's Head of Development Prof. Hackenberg: "The entire VW Group will use these patents." Ingolstadt/Burnaby, February 11, 2015 – AUDI AG has acquired a package of patents relating to fuel-cell technology from Ballard Power Systems Inc. In addition, the Volkswagen Group has extended its cooperation with the Canadian clean energy company until 2019. The purchase of these patents will provide new impetus for the development of fuel-cell drive systems at Audi, VW and the Volkswagen Group. As explained by Prof. Dr. Ulrich Hackenberg, Member of the Board of Management for Technical Development at AUDI AG and responsible for the steering of the development departments of all brands in the VW Group: "Audi is acquiring these strategically important patents for the entire group and will make them available to all the brands. In this way, we are securing crucial expertise that will provide new impetus for the further development of this technology." Ballard Power Systems Inc. is based in Burnaby, Canada, and is one of the world's leading companies in the technology of proton exchange membrane fuel cells.