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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.

VW adding particulate filters to gas engines

Volkswagen is working hard to overcome the PR disaster that is its diesel emissions scandal, and part of its efforts is focusing, weirdly, on petrol engines. Starting in June 2017, the embattled German automaker will add particulate filters to the gas-powered Volkswagen Tiguan and Audi A5. The change will eventually impact nearly every direct-injected gas engine the VW Group makes. Audi? Particulate filter. Seat? Particulate filter. Even Bentley is going to get the tech, all in a bid to reduce soot emissions by 90 percent. In fact, by 2022 VAG expects 7 million of its vehicles to boast the emissions-cleaning tech, which has long been a fixture on diesel engines. "Following increases in efficiency and lower CO2 output, we are now bringing about a sustained reduction in the emission levels of our modern petrol engines by fitting particulate filters as standard," Volkswagen Group research and design boss Dr. Ulrich Eichhorn said in a statement. "In the future, all models will be equipped with the latest and most efficient SCR catalytic converter technology." VW's initial rollout focuses on the 1.4-liter, turbocharged Tiguan and the 2.0-liter, turbocharged A5. Considering the popularity of the 2.0-liter across the VW range, we'd expect it's only a matter of time before VW expands its particulate filters tech to additional gas-powered vehicles. Related Video:

Daily Driver: 2016 Audi A7

Daily Driver videos are micro-reviews of vehicles in theAutoblog test fleet, reviewed by the staffers who drive them every day. Today's Daily Driver features the 2016 Audi A6, reviewed by Seyth Miersma. You can watch the video above or read a transcript below. Watch more Autoblog videos at /videos. Show full video transcript text Hey, all. This is Seyth with Autoblog, and I'm in the 2016 Audi A7 3.0. It's interesting, initially, I thought that I wouldn't do any kind of video review on this car because I've already done reviews on the Audi RS7 and the Audi S7. I didn't want to be overly heavy handed on the Audi A7 range, but I thought I'd at least do a quick update because it's a little bit interesting to compare and contrast all three versions of the car. This A7 has got a supercharged 3.0-liter V6 engine. It makes 333 horsepower, 325 pound-feet of torque. The MSRP starts around $69,000 when you factor in the destination charge. The one that I'm driving is right around $78,000. You look around the cabin, and you see typically nice Audi fare. It definitely feels like you're in a high-end car. Compare that to the S7, and you lose about 120 horsepower, and you add to that sticker price around $14,000. Move up to the RS7, which if you'll remember I characterized as a supercar with a hatchback, you're down way more than 200 horsepower and right around $35,000. When you take the step down especially in power you expect that the performance is not only going to lag but might be a little bit disappointing being as I was in the fancier ones first. The truth is after all these miles, this car is really fantastic especially the RS7. It really surprised me with its ability to combine just crazy good performance with great livability, never overly harsh, not a lot of impact noises. The suspension didn't beat you up. All that is obviously true of this A7 too. You don't have that top end and maybe not all of the outright ability, but it still feels very capable and a lot of fun to drive when you want to push it. You get a powerful V6, which makes the car feel pretty damn fast. Now as I'm speeding along here, I don't get the same sort of aural enjoyment from this car as I do from the V8s. Those guys just sound crazy good especially when you're really getting into it. The V6 you really got to work at to hear even, but it's satisfying, and it just feels nice and light and powerful when you're going down the road.