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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.

Watch the Audi R18 E-Tron Quattro long-tail testing at Monza

Audi released a single photo of the long-tailed version of its R18 E-Tron Quattro Le Mans racer, but the photo didn't offer the best view of the stretched rear. The car has been caught testing at Monza, in Italy, and not only do we get a better view of what it's got out back, we get pretty awesome sound as it makes high-speed runs past the camera.
Since the 2013-spec car was found to be down on performance versus the 2012, the long-tail is a different evolution to see if Audi can eke out more performance from its already dominant chassis. Have a look and a listen in the video below.

After Le Mans exit, Audi adds World Rallycross to Formula E and DTM efforts

Back in October, Dieselgate claimed another victim: Audi's FIA World Endurance Championship program. Audi left at the height of its Le Mans racing prowess, having won 13 times overall in 18 years at the famous French race. We didn't expect Audi Sport to confine itself solely to the Formula E and Deutsche Tourenwagen Masters (DTM) series, and so today Audi announced that the company would officially back an existing FIA World Rallycross Championship (World RX) team, EKS, in 2017. EKS was formed by Mattias Ekstrom, who is also a factory Audi DTM driver with a couple of championships under his belt in that series. He's been competing in various rally and touring car series for years, and even snagged a ride in a NASCAR Sprint Cup race back in 2010 at Infineon Raceway. The EKS team came together in 2014, with Ekstrom fielding an Audi S1 EKS RX Quattro. And the team hasn't done too badly for itself; in 2016, it took the driver's and team championships. There's only so much Ekstrom's team as privateers can do to protect its championship from factory-backed teams, so that explains why Audi Sport was happy to step in with full support – including vehicle development supported by the actual motorsport department at Audi. Ekstrom will also continue on as a factory Audi DTM driver. Related Video: Motorsports Audi Racing Vehicles fia audi s1