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Next-gen Audi Q7 shows off its wares ahead of Detroit

Audi has put the Q7 on a massive diet, trimming over 700 pounds. Meet what is sure to be one of the bigger debuts at the upcoming 2015 Detroit Auto Show. The next-generation Audi Q7 has been the subject of spy shots and conjecture for quite some time. After all, it was easily the oldest vehicle in the Audi range, having hit the market way back in 2006. But with this new model, Audi has comprehensively updated its fullsizer, adding some cutting-edge tech, updating some classic engines, and taking a whole lot out. As is the theme nowadays, particularly among large crossovers and SUVs, Audi has put the Q7 on a massive diet with a mix of ultra-high-strength, hot-shaped steel and aluminum, trimming over 700 pounds of body fat and lowering the Q7's weight to just under 4,400 pounds. This was accomplished while maintaining virtually identical dimensions to the current model. While Audi USA hasn't released its info on the Q7, the Euro-spec model will continue to offer a pair of engines that should be very familiar to US consumers, with a 3.0-liter, supercharged V6 gas engine and a 3.0-liter TDI V6. The European engines, though, have had their CO2 emissions halved, while actually increasing performance (we should expect similar from the US engines). The 3.0-liter TDI has been bumped up from 240 horsepower to 272 ponies, while torque is up from 406 pound-feet to 443. The 3.0-liter TDI has been bumped up from 240 horsepower to 272 ponies, while torque is up from 406 pound-feet to 443. This extra grunt has trimmed the 0-60 time from a leisurely 7.3 seconds down to 6.3, while the fuel economy has jumped up to 41.3 US miles per gallon, converted from the European cycle (so expect the EPA numbers to be a bit lower). The supercharged 3.0-liter, meanwhile, has been amped up to match the output of its application in the S4 sport sedan, jumping from 280 hp and 295 lb-ft to 333 ponies and 325 lb-ft. Once again, the 0-60 time falls dramatically thanks to the power bump and weight loss, dropping from 7.7 seconds to a far more zippy 6.1. The most exciting news is the long-rumored arrival of the Q7 E-Tron, a plug-in hybrid that's mated to a six-cylinder diesel engine and Quattro all-wheel drive. Audi claims this world-first production powertrain will return 138.4 US miles per gallon, emit less than 50 grams of CO2 per kilometer and allow the Q7 E-Tron to travel up to 35 miles on electric power alone.

2015 Audi A3 E-Tron [w/video]

Over the years, we've had a chance to test a lot of Audi E-Tron vehicles, from very early all-electric prototypes (back then we only got to sit in the passenger seat) to the A6 L E-Tron PHEV and the A1 E-Tron plug-in hybrid. All of them were concepts and promises, merely whispers of what was possible, even as the Nissan Leaf, Chevrolet Volt and two Tesla models were making waves in the marketplace.
As we learned last year in our Deep Dive of the E-Tron project, all of the concepts, prototypes and rumors have finally come to fruition in this A3 Sportback E-Tron. Previously, we were given a chance to drive a prototype, but it was only very briefly. Last week, we finally got to run a production-representative example through the hilly roads between Vienna, Austria and Munich, Germany. After spending a solid day with Audi's first marketable E-Tron vehicle, we can say that it's a most amazing bit of engineering, in particular for the way that Audi has done so much to hide the fact that this is an electrified vehicle. Not entirely, of course, but the idea was to make the A3 Sportback E-Tron a no-compromise PHEV. And that means it drives and feels, in many ways, like the standard A3 Sportback despite over 700 extra pounds. Oh, and there's a charge port hidden behind the four rings in the grille.

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.