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Audi unveils A3 Sportback G-Tron with bi-fuel power, 808-mile range

By this time next year, the Audi A3 Sportback will be offered with a variety fuel-efficient powertrains ranging from diesel to the all-electric E-Tron, but perhaps the most interesting is the all-new G-Tron model, which uses Audi's innovative carbon-natural compressed natural gas called e-gas. Previously called A3 TCNG, we first heard about this technology last year, but now Audi has confirmed that this low-emission, sustainable-fuel will debut by the end of this year on the A3 Sportback G-Tron.
To create this e-gas, a plant in Werlte, Germany uses electricity to split water into hydrogen and oxygen. As hydrogen fuel cell vehicles become more popular, Audi says that this process could also be used to produce hydrogen fuel, but to create CNG, it mixes the hydrogen with carbon dioxide to create "synthetic methane." Since it is identical to the CNG available today, Audi's e-gas can be shipped and stored using the existing CNG infrastructure. Making the whole process even greener, Audi obtains the CO2 for this process from a nearby biogas plant, which would otherwise be released into the atmosphere.
Differentiated from the regular versions of the A3, the G-Tron features a pair of tanks under the rear cargo floor holding 15.43 pounds of CNG, which can power the car for almost 250 miles. What's more, the A3's conventional gasoline tank is still in place, giving the car an addition 560 miles of range. In total, that means the A3 G-Tron has a driving range of more than 800 miles. To run on both CNG and gas, Audi made changes to the car's 1.4-liter four-cylinder engine (including the turbo, cylinder head and fuel injection system) and catalytic converter.

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.

Audi recalls A6, A7, and A3 in two airbag-related campaigns

Audi will recall a total of 21,978 vehicles in the US across two campaigns. The Basics: Audi's larger recall covers 21,074 examples of 2012-2013 A6 sedans with manufacturing dates between March 28, 2011, and March 25, 2013, and the 2012-2013 A7 models built between January 25, 2011, and March 19, 2013. The Problem: In examples of the sedans with heated and cooled seats, the Passenger Occupant Detection System can malfunction and prevent the passenger's side airbag from deploying in a crash. Injuries/Deaths: None reported. The Fix: Dealers will repair the Passenger Occupant Detection System. If You Own One: Audi will begin the recall in February 2016. The Basics: In the smaller safety campaign, Audi will recall 904 examples of the 2015 A3 Cabriolet built between June 5, 2014, and April 1, 2015. The Problem: The driver or front passenger seat covers might not have the correct stitching, and this could prevent the side airbag from properly deploying in a crash. Injuries/Deaths: None reported. The Fix: Dealers will replace the seatback covers on affected seats. If You Own One: Audi will begin the recall in February 2016. Related Video: RECALL Subject : Passenger Seat Occupant Detection System may Fail Report Receipt Date: DEC 08, 2015 NHTSA Campaign Number: 15V823000 Component(s): AIR BAGS Potential Number of Units Affected: 21,074 All Products Associated with this Recall Vehicle MakeModelModel Year(s) AUDI A6 2012-2013 AUDI A7 2012-2013 Details Manufacturer: Volkswagen Group of America, Inc. SUMMARY: Volkswagen Group of America, Inc. (Volkswagen) is recalling certain model year 2012-2013 Audi A6 vehicles manufactured March 28, 2011, to March 25, 2013, and 2012-2013 Audi A7 vehicles manufactured January 25, 2011, to March 19, 2013. In vehicles with heated and cooled seats, the Passenger Occupant Detection System (PODS), used to enable the front passenger air bags, may malfunction and prevent the passenger-side air bags from deploying in a crash. CONSEQUENCE: An air bag that does not deploy as intended increases the risk of occupant injury in a crash. REMEDY: Volkswagen will notify owners, and Audi dealers will install a PODS system repair kit, free of charge. The recall is expected to begin in February 2016. Owners may contact Audi customer service at 1-800-253-2834. Volkswagen's number for this recall is 74D1.