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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.

Recharge Wrap-up: Electric Bayliner conversion, China considers EV mandates

An electric mobility enthusiast converted a Bayliner boat to electric power. Using 10 Tesla modules to build a 32-kWh battery pack, Scott Masterson's 2016 Bayliner 175 now uses an electric motor in place of the original 3.0-liter Mercruiser engine. With a top speed of about 53 mph and a range of about 25 miles, Masterson can enjoy a nice cruise on the water without the accompanying gas fumes. He says the conversion wasn't all that complicated, and it took him about three months of part-time work. Check it out in the video above, and read more at Electrek. Audi's updates to the 2017 A3 include the E-Tron plug-in hybrid. Inside the car, it will likely get Audi's "Virtual Cockpit" instrument display. The MMI infotainment system will be updated, with available Apple Carplay and Android Auto functionality. Slight changes to the headlights, taillights, and grille will make up the bulk of the exterior visual changes. Its powertrain will remain unaltered from the 2016 model, including its 83 MPGe combined rating and 16 miles of all-electric driving range. Read more at Green Car Reports. Hyundai has delivered its first hydrogen-powered car to Quebec. The Centre de Gestion de l'Equipment Roulant (Rolling Stock Management Center), which manages the province's government fleets, took delivery of a 2016 Hyundai Tucson Fuel Cell. It is leased in partnership with the University of Quebec's Hydrogen Research Institute of Trois-Rivieres, where the vehicle will be refueled. Read more from Green Car Congress. China is considering mandates for cleaner cars similar to those imposed by California. Unlike its current subsidy-based incentives, China could potentially require automakers to either produce or import more electric vehicles or purchase carbon credits from automakers that do. A draft of the legislation from the National Development and Reform Commission would fine non-compliant automakers at five times the price of the credits. "Without question, this will be good for the industry and will promote the development of all types of clean-energy vehicles," says China Association of Automobile Manufacturers Deputy Secretary General Ye Shengji. Compliance would be voluntary for smaller automakers. Read more from Automotive News.

Mazda3 versus BMW 1 Series and Audi A3 in Euro diesel showdown

It's not exactly a Tesla Model S taking on a Ferrari, but for us green enthusiasts, a drag race and comparison between reasonably priced diesel hatchbacks does hold interest, and UK's Auto Express was kind enough to do the deed. When raced, the diesels actually laid a little rubber coming off the line, though the track was covered in rain. Did we mention it was in the UK? The comparison was between diesel hatchbacks priced at less than 22,000 British pounds (about $34,500 US), and Auto Express pitted a Mazda3, a BMW 1-Series and an Audi A3 against each other. The results are revealed in the 11-minute video you can watch below. In short, one car smoked the others. In order to set the tone, you should know that the Mazda's 150 horsepower is about 35 more than the other two entrants. The Mazda also earned points for its quiet motor (it sounds more like a petrol engine, the host says), standard equipment that would add about $4,000 to the other two cars if included and relative roominess in front and in back. The Audi gained points for its storage space, while the BMW had the only rear-wheel-drive car in the hunt. See for yourself how the competition stacks up. News Source: Auto Express via YouTube Green Audi BMW Mazda Diesel Vehicles bmw 1-series Auto Express