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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.

Mercedes considering Audi Allroad rival

The Audi Allroad is something of an anomaly in the automotive world. Its competitors are limited to the recently released Volvo V60 Cross Country and perhaps the far cheaper Subaru Outback. The lifted premium wagon hasn't exactly done great for Audi, only selling a few hundred examples each month. Its best sales year was 2013, and even then, only 5,300 left US showrooms. Despite these limited prospects, word from Australia is that Mercedes-Benz is looking at launching its own competitor to the Allroad. "We are looking at every single niche, so we are studying this [Allroad] at the moment, but it is not confirmed," Matthias Luhrs, VP of sales and a member of the product management at MB, told Motoring.com.au. "We are looking obviously at C-Class and E-Class, but no confirmation at the moment." Fortunately, Luhrs recognizes that the Allroad isn't exactly a smash in the US. "In the US, no matter how long, short, high ... they don't like station wagons," Luhrs said, while adding that the Allroad concept is "developing quite successfully" in Italy and southern Europe. And for those hoping for a lifted C- or E-Class sedan, Luhrs also put the kibosh on that, saying, "We are not studying that." So what does this tell us? Well, it's still far from a sure thing that Mercedes will launch a lifted C-Class or E-Class Estate. And even if the company does go ahead with it, like the rest of the brand's long roofs (E-Class aside), don't expect to see it on US roads.

2017 Audi Q7 First Drive

Automotive evolution rarely makes a great leap, instead creeping along from new model to new model at a predictable pace. Audi's new Q7, though, is like handing a Bic lighter to a Cro-Mangon man smashing rocks. In Europe the new version drops 700 pounds, almost enough to reclassify its species. Audi's fire-machine will arrive in America in early 2016, as a 2017 lighter model. We spent some time in the Swiss Alps flicking the 2017 Audi Q7. As far as revolutions go, the 2017 Q7 certainly looks new. It resembles a tall station wagon more than ever, at least in European trim. A little tweaking of the design wand has left the rear end boxy and angular. Our test models use an adaptive air suspension, and the the "all-road" setting lifts the Q7 about an inch, to the normal ride height for US models. Thus raised, the big Q looks more like an SUV. This Q7 represents the first of the Volkswagen Group's MLB-platform cars. Lighter and said to be more dynamic, MLB will underpin everything from the next-gen A4 to performance and luxury SUVs like the Porsche Cayenne, and Bentley Bentayga. With the structural improvements comes a diet heavy in aluminum, the prime reason for the previously-mentioned weight savings. When outfitted for our content and crash-safety specification, US-bound models will still be about 500 pounds lighter than before. But dramatic weight-savings isn't the Q7's only trick. The adaptive air suspension significantly changes the character of the Q7, especially in the sportiest Dynamic model. There's an optional all-wheel steering feature that improves turning radius, and helps with high-speed stability. This is not to be confused with Audi's Quattro all-wheel drive, which along with a panoramic sunroof and seven seats, comes standard on all stateside models. Under the hood, things aren't so different. Both available engines are reworked but largely the same. The supercharged 3.0-liter gas engine still makes 333 horsepower and 325 pound-feet of torque, but it's not as thirsty as it used to be. Expect a two or three mile-per-gallon bump once official EPA ratings arrive. That engine, as well as Audi's reworked 3.0-liter V6 TDI – good for 260 hp and 443 lb-ft once outfitted for the US – are mated to the ubiquitous ZF eight-speed transmission. The Q7's driving character greatly depends on where it is pulling power from. While the diesel model is capable, turbo lag cuts back on the satisfaction we normally derive from oil burners.