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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 teases Frankfurt reveal... is it the A8?

Audi has already rumored to have plans to reveal a 650-horsepower Sport Quattro Concept at the 2013 Frankfurt Motor Show in September, but it also seems that we'll be getting our first look at the 2015 Audi A8 as well. Based on a panned-out shot of a teaser video, we can clearly see that this is a new sedan model, so it makes sense that is the updated A8 since we've already seen recent spy shots of that car that seemed to be almost complete.
In the short video, all that we can definitely see is the Audi logo in the grille, a five-spoke wheel with cross-drilled, ceramic disc brakes and a small portion of the front fender that has an almost mirror-like shine. We'll find out for sure in September, but until then, check out the teaser video posted below.

Audi races ahead with new R8 LMS [w/video]

The biggest news from Audi at the Geneva Motor Show may very well be the reveal of the all-new, second-generation R8 supercar. But the road-going version isn't the only one it's rolling out at the Swiss expo, where it's joined by the new competition-spec R8 LMS. Set to hit race tracks around the world next season, the new Audi R8 LMS picks up where the current one leaves off, having taken 26 GT3 Championship victories and seven 24-hour race wins between 2009 and 2014. That's a heck of a mantle to assume, but the new model looks like it'll be up to the task. Based on the new road-going R8, the new LMS is built to 2016 GT3 regulations and in many ways even exceeds them. In fact, Audi says it meets the more stringent crash requirements for the LMP1 class, and includes its state-of-the-art Audi Protection Seat PS 1 from the R18 E-Tron Quattro. It also incorporates the emergency hatch Audi built in to its DTM racers. Of course, there's more to the new R8 LMS than safety. Despite the addition of those features, the whole package is a good 55 pounds lighter than the outgoing model, thanks to the lightweight spaceframe chassis and the increased use of carbon-fiber components – all the while offering more torsional rigidity. Power still comes from Audi's celebrated 5.2-liter V10 engine producing 585 horsepower, but is now mated to a new six-speed sequential gearbox and benefits from an entirely new electrical system, improved airflow and optimized aerodynamics. All that and more ought to help the new R8 LMS and its customer racing teams achieve the success they're after once it makes its competitive debut at the Nurburgring 24-hour race in mid-May 2016. Related Video: AUDI R8 LMS ESTABLISHES NEW RACE CAR GENERATION: LIGHTER AND SAFER THAN EVER BEFORE Ingolstadt, March 3, 2015 – Audi is again running in front. As one of the first automobile manufacturers to do so at the beginning of the 2015 season, the brand with the four rings is presenting a race car that already meets the requirements of the new GT3 regulations to be introduced in 2016. The new Audi R8 LMS is lighter and safer than ever before. It features even more race car technology, clearly improved aerodynamics and, as a result, provides customers with an efficient concept. Back in spring of 2014, Audi began testing the new R8 LMS that is following in big footsteps.