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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, MIT, GE start cab ridesharing study in New York City

Audi, Massachusetts Institute of Technology's (MIT) and General Electric are getting together to study something that won't likely be thrilling for New York City cab drivers. But there are bigger fish to fry and keeping cabbies happy. The German automaker is working with MIT's Senseable City Lab and GE on a study designed to get a better handle on how ridesharing in the city's cabs could work and how such a practice could cut both emissions and traffic in the largest US city. The program, dubbed HubCab, will track more than 150 million taxi trips in a year. The broader idea is to figure out how ridesharing could cut trips by 40 percent. That's not likely to please the holders of those coveted NYC taxicab medallions but would certainly benefit the city in other ways. "The aim of HubCab is to spark thinking about ways of utilizing publicly available data as we explore new concepts for mobility, especially in crowded urban contexts," said Audi spokesman Brad Stertz. Stertz allowed that there remained many legal and "customer acceptance" issues to address with ridesharing and that there was no timeframe for concluding the study or when the findings would be put into effect via an actual ridesharing system. At least it's a start. Check out Audi's press release below. MIT, Audi launch HubCab project in New York City • HubCab will track more than 150 million taxi trips in NYC to gain insight on ride share scenarios • Insights will inform researchers on how car sharing systems can lower vehicle emissions, reduce congestion, and save money and time • Scientific study conducted at Massachusetts Institute of Technology's Senseable City Lab with support of VW Group's ERL, Audi and GE MIT, in partnership with Audi and GE, launches HubCab – a transportation tracking tool aimed at reducing commuting congestion, decreasing vehicle emissions and dramatically lowering the cost of mobility infrastructure. HubCab tracks more than 150 million taxi rides in New York City over the course of a year. With this information, researchers can identify commuter travel patterns and work to develop a more efficient car share system. MIT researchers say HubCab technology could not only save people money and time, but allow users to better plan their taxi rides around the city, potentially reducing the number of trips by 40%.

Next-gen Audi Q7 shows off its wares ahead of Detroit

Audi has put the Q7 on a massive diet, trimming over 700 pounds. Meet what is sure to be one of the bigger debuts at the upcoming 2015 Detroit Auto Show. The next-generation Audi Q7 has been the subject of spy shots and conjecture for quite some time. After all, it was easily the oldest vehicle in the Audi range, having hit the market way back in 2006. But with this new model, Audi has comprehensively updated its fullsizer, adding some cutting-edge tech, updating some classic engines, and taking a whole lot out. As is the theme nowadays, particularly among large crossovers and SUVs, Audi has put the Q7 on a massive diet with a mix of ultra-high-strength, hot-shaped steel and aluminum, trimming over 700 pounds of body fat and lowering the Q7's weight to just under 4,400 pounds. This was accomplished while maintaining virtually identical dimensions to the current model. While Audi USA hasn't released its info on the Q7, the Euro-spec model will continue to offer a pair of engines that should be very familiar to US consumers, with a 3.0-liter, supercharged V6 gas engine and a 3.0-liter TDI V6. The European engines, though, have had their CO2 emissions halved, while actually increasing performance (we should expect similar from the US engines). The 3.0-liter TDI has been bumped up from 240 horsepower to 272 ponies, while torque is up from 406 pound-feet to 443. The 3.0-liter TDI has been bumped up from 240 horsepower to 272 ponies, while torque is up from 406 pound-feet to 443. This extra grunt has trimmed the 0-60 time from a leisurely 7.3 seconds down to 6.3, while the fuel economy has jumped up to 41.3 US miles per gallon, converted from the European cycle (so expect the EPA numbers to be a bit lower). The supercharged 3.0-liter, meanwhile, has been amped up to match the output of its application in the S4 sport sedan, jumping from 280 hp and 295 lb-ft to 333 ponies and 325 lb-ft. Once again, the 0-60 time falls dramatically thanks to the power bump and weight loss, dropping from 7.7 seconds to a far more zippy 6.1. The most exciting news is the long-rumored arrival of the Q7 E-Tron, a plug-in hybrid that's mated to a six-cylinder diesel engine and Quattro all-wheel drive. Audi claims this world-first production powertrain will return 138.4 US miles per gallon, emit less than 50 grams of CO2 per kilometer and allow the Q7 E-Tron to travel up to 35 miles on electric power alone.