2002 Audi A6 Quattro Base Sedan 4-door 2.7l on 2040-cars

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2014 Audi A6, A7 and Q5 TDI diesel models get pricing and fuel economy figures [w/videos]

Last year, Audi announced that it was expanding its lineup of TDI models for 2014 with the Q5, A6 and A7 joining the diesel-burning Q7 and A8 L models already in existence. The Q7 TDI has been out for a few years now and we recently drove the A8 L TDI, but now Audi has released the pricing, performance and fuel economy details for the 2014 Q5 TDI, A6 TDI and the ever-stylish A7 TDI. Down the road, Audi has also promised a TDI version of the next-generation A3 that will debut for 2014.
Until the new A3 TDI shows up, the Q5 will be the most affordable diesel model in Audi's lineup, with a starting price of $46,500 to go with fuel economy estimates of 24 mpg city and 31 mpg highway. The closely related A6 and A7 will get identical fuel economy numbers of 24 city and 38 highway in diesel form, with the A6 TDI starting at $57,500 and the A7 TDI starting at $66,900. In the three new TDI applications, Audi's 3.0-liter V6 produces 240 horsepower and 428 pound-feet of torque, and all models are paired with an eight-speed automatic transmission. Scroll down for videos (stock running footage) and more information on the Q5 TDI, A6 TDI and A7 TDI, all of which go on sale in late summer.

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.

2014 Audi RS7 [w/video]

The subject of what makes up a true "supercar" is a difficult one, fraught with personal connotations and the rare ability to bring close colleagues into heated confrontation with one another in the blink of an eye. I say this because, while the 2014 Audi RS7 most certainly does not make the supercar cut on a few levels to my way of thinking - not rare enough, expensive enough or wearing an appropriately evocative body - it is unquestionably an "everyday supercar" of remarkable ability. And, pertinently, it is one that proved willing to ply its trade in every version of winter that Michigan had to offer it.
I had winter four ways during my week-long loan with the RS7. A period of crisp temperatures and dry roads, presided over by light blue skies as wide as the horizon, soon gave way to spitting, freezing rain blanketed in slightly misleading warmer air. Then there was snow. Not the massive blanket we saw in the first week of the New Year, but more than enough to see my neighbors stocking up on Ice Melt and replacing their shovels for the season. Finally, temperatures dropped to the mid teens, cottony snow compressed into a hard pack and all residual moisture on the mostly cleared roads morphed into the very slickest of ice. Timeless curses were uttered by cranky commuters in smoking breaths. Pure Michigan.