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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.

Refreshed A1 packs Audi's first three-cylinder gas engine [w/video]

Back in 2010, Audi debuted the diminutive A1, and it's sold over half a million of them since. Now, more than four years later, the German automaker has given its smallest and most accessible model a facelift and some updated equipment.
The latest version of the A1 benefits from a range of updates, including a sharpened take on the company's familiar styling with a reshaped single-frame grille, new bumpers front and rear as well as new wheel and color choices. But the biggest news is the introduction of Audi's first three-cylinder gasoline engine.
The turbocharged, direct-injected 1.0-liter three-pot churns out just 94 horsepower, but that's still six more than the previous base 1.2-liter four offered, all the while returning better fuel economy and emissions figures. Of course, that turbo three is not the only engine on offer, joining the 1.4-liter turbo four in 123- and 148-hp states of tune and the 113-hp 1.6-liter TDI. And of course there's still the 228-hp S1 performance model. Depending on specification, the engines are mated to a five- or six-speed manual, but can all be optioned with a seven-speed dual-clutch transmission as well.

Le Mans champion Allan McNish retires from LMP1 racing

Having won the 24 Hours of Le Mans three times, the American Le Mans Series title another three times and, most recently, the FIA World Endurance Championship, Allan McNish doesn't have much left to prove. Which is why he's retiring, ending this stage of his 33-year driving career on a high note.
In a statement just released by McNish himself and his team at Audi, the Scotsman said "I've had a fantastically successful time with Audi and feel it's the right time to step back from Le Mans sports-prototype racing and to look at other opportunities."
Just what those other opportunities might be is another matter. He's raced in DTM, Formula One and the International Formula 3000 series, where he won two races in 1990. McNish, 44, is also part of the BBC Radio's F1 commentary team, serves as president of the Scottish Motor Racing Club and is often called upon by the FIA to act as a grand prix race steward. Audi says he'll continue to be part of the team, just not in the driver's seat. Given his success in endurance racing, he's surely got a wide variety of opportunities to pursue, and we're looking forward to seeing where he lands.