2008 Audi A4 4dr Sdn 2.0t Fronttrak S-line on 2040-cars

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Weekly Recap: The divergent paths of Tesla and Fisker

There's no doubt that Tesla is downshifting while Fisker has been grinding its gears. But it wasn't always that way.
In the wake of Tesla's recent success, it's easy to forget that there were once two California electric carmakers with bright futures.

Audi TT Offroad gets the green light

The TT family already has a coupe and convertible, with various engines available in each. But over the past year or so, Audi has been toying with the idea of expanding the range with another bodystyle. And now the latest report from Car confirms that Ingoldtadt has given the production go-ahead to the TT Offroad concept. Unveiled at the Beijing Motor Show last year, the yellow TT Offroad concept envisioned a high-riding five-door crossover form with trademark TT styling cues. It was preceded by the blue three-door Allroad Shooting Brake concept at the Detroit show and followed by the sleek, red five-door TT Sportbrake concept at the Paris salon later the same year, but the impracticality of both those show cars is what we understand prompted Audi to go with the Offroad concept instead. So if it's a crossover, why not badge it with the letter Q, you ask? Because Fiat, that's why. The Italian automaker owns the names Q2 and Q4, which it has used on a variety of models (particularly Alfa Romeos and Maseratis) to connote their traction system. And though the Volkswagen Group has asked nicely, Sergio Marchionne has been as reluctant to give his biggest rivals a leg up as he has been to part with Alfa Romeo, despite their repeated advances. As a result, word has it that the production version of the TT Offroad concept will be sold as the TTQ, which kinda makes us giggle, but it would at least provide a nomenclature bridge between the TT and Q families within Audi's lineup. That is, unless Audi marketing chief Luca de Meo manages to convince his former boss to part with the Q2 and/or Q4 labels. Whatever it's called, the production crossover coupe would share similar dimensions to the Q3 when it arrives in 2017, but would potentially stand even further apart from its more utilitarian counterpart than the BMW X4 does from the X3 on which it is based.

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.