2009 Audi R8 Coupe 2-door 4.2l on 2040-cars

Auto blog

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.

2015 Audi A3 E-Tron [w/video]

Over the years, we've had a chance to test a lot of Audi E-Tron vehicles, from very early all-electric prototypes (back then we only got to sit in the passenger seat) to the A6 L E-Tron PHEV and the A1 E-Tron plug-in hybrid. All of them were concepts and promises, merely whispers of what was possible, even as the Nissan Leaf, Chevrolet Volt and two Tesla models were making waves in the marketplace.
As we learned last year in our Deep Dive of the E-Tron project, all of the concepts, prototypes and rumors have finally come to fruition in this A3 Sportback E-Tron. Previously, we were given a chance to drive a prototype, but it was only very briefly. Last week, we finally got to run a production-representative example through the hilly roads between Vienna, Austria and Munich, Germany. After spending a solid day with Audi's first marketable E-Tron vehicle, we can say that it's a most amazing bit of engineering, in particular for the way that Audi has done so much to hide the fact that this is an electrified vehicle. Not entirely, of course, but the idea was to make the A3 Sportback E-Tron a no-compromise PHEV. And that means it drives and feels, in many ways, like the standard A3 Sportback despite over 700 extra pounds. Oh, and there's a charge port hidden behind the four rings in the grille.

VW admits 430,000 2016 models have implausible CO2 ratings

Volkswagen finally explained more details about its CO2 rating scandal in Europe and admitted that 430,046 of the estimated 800,000 affected vehicles with "implausible" figures came from the 2016 model year. They included some from Audi, Seat, Skoda, VW, and VW Commercial Vehicles, according to the automaker's list (as a PDF). The problem mostly impacts diesel engines, but the inventory also shows some gasoline mills. VW will next determine the accurate CO2 emissions for these vehicles, and the German Federal Vehicle and Transport Authority will supervise that process to ensure the data's veracity. The automaker will also launch websites in Europe to let owners enter their model's VIN to check whether it's affected. Because governments there often link vehicle taxes and CO2 production, the company promises to work with regulators in each country to cover any fees that result from the inaccurate figures. VW announced the CO2 scandal earlier in November and estimated the equivalent of $2.2 billion to fix it at the time. A later report claimed that a group of engineers were responsible for fabricating the emissions data. They allegedly couldn't meet reduction goals from Martin Winterkorn, and between 2013 and this spring the workers did things like overinflate the tires during testing to achieve the desired results. VW is also closer to a fix in the diesel emissions scandal. According to an anonymous insider to Bloomberg, the company has a repair for the 1.6-liter engine that's reportedly neither very complex nor expensive. German regulators would still need to approve the solution before it could roll out to owners. Next step in clarifying the CO2 issue Affected Volkswagen Group models of the current model year have been identified Customers being informed via website Discussions with the authorities have begun The Volkswagen Group reports that the vehicles of the 2016 model year affected by the CO2 issue have been identified. There is thus now clarity about the new vehicles of the current model year out in the marketplace. On 3 November 2015, the Group had already reported that irregularities may have arisen in determining the CO2 figures for type approval of around 800,000 vehicles. This was identified during its own currently ongoing investigations and had been made public. The internal investigations into the current vehicles of the 2016 model year provide results for narrowing down the actually affected vehicles with implausible CO2 figures.