2008 Audi A4 Quattro S-line Sedan 4-door 2.0l on 2040-cars

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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 planning A9 electric vehicle to challenge Tesla

It looks like we have another "Tesla Fighter" on our hands. Various higher-end automakers have announced plug-in luxury sports sedans that would likely take on the California-based electric-vehicle maker, and Audi now appears to have joined that group. The badge is A9, and it may be available to the public by the end of the decade, UK's Autocar reports. The Audi A9 E-Tron could be a beast. The car will deliver 429 horsepower via three electric motors – two driving the front wheels, one driving the rear. The sedan will be equipped with a 95-kilowatt-hour battery that will enable a 310-mile single-charge range (on the more generous European driving cycle). Lots of parts and features will be shared with the battery-electric SUV Audi is also planning. Where it really gets fun is the prospect of the sedan having "torque vectoring," in which power can be shifted from side to side in order to boost handling. Additionally, the car could have a wireless, inductive charging option as well as an auto-parking feature for positioning over the floor-mounted charging module. No word on how this car will be priced, but we're guessing quite high. Audi CEO Rupert Stadler has gone on record saying that the German automaker wants to have three all-electric models available to the public by 2020, though hasn't said anything specific about a high-end battery-electric sedan that would be geared to take on the Tesla Model S. The company did introduce its E-tron Quattro concept last year, though, and Audi has said it aims to have as much as 25 percent of its sales be of the plug-in variety by 2025. There's a chance for that if the A9 e-tron is as enticing as it appears to be. Related Video:

2016 Audi SQ5 TDI Plus a quick sprinter with 35 mpg

Not only does Europe get cool diesel-powered models, but occasionally, some of those oil-burners are of the high-performance variety. Take the Volkswagen Golf GTD, Audi Q7 V12 TDI, and now this, the new Audi SQ5 TDI Plus. In this new form, the 3.0-liter, turbodiesel V6 is very nearly as powerful as the supercharged V6 available in the US-market SQ5, producing 340 horsepower. That's 27 more than stock, for those keeping track at home. In terms of torque, of course, the diesel-powered SQ5 just embarrasses the gas-powered CUV. Torque is up 37 pound-feet to a thumping 516 lb-ft. We'll go ahead and classify that as a lot. This extra output allows the SQ5 TDI Plus to hit 62 miles per hour in just 5.1 seconds, matching the supercharged model we have access to here in the US. The top speed, as with the gas-powered model, is limited at 155. Unlike North America's CUV, though, fuel economy is very impressive. European drivers can expect the equivalent of 35.6 miles per gallon, compared to just 24 mpg with the gas engine. We have a full set of images of the new SQ5 TDI Plus from the floor of the 2015 Frankfurt Motor Show. Scroll up and check them out. Related Video: Even more power and top-of-the-line equipment: The Audi SQ5 TDI plus with 250 kW (340 hp) - The SQ5 TDI plus will launch on the German market in October 2015 - 700 Nm of torque; from 0 to 100 km/h in 5.1 seconds - On request, exclusive equipment package from quattro GmbH Audi is further expanding its range of S models. In October, the new SQ5 TDI plus* will arrive at German dealerships with more power and driving pleasure and even more extensive equipment – with 250 kW (340 hp), sport differential and 21-inch wheels. Even in its basic version, the successful Audi SQ5 TDI* comes as an SUV with the performance of a sports car. The plus version has an even higher power output. The biturbo V6 TDI produces 250 kW (340 hp) from its three liters of displacement by way of increased injection pressure. This results in 20 kW/27 hp more power compared to the SQ5 TDI. Its peak torque is increased by 50 (36.9 lb-ft) to 700 Nm (516.3 lb-ft). The powerful diesel SUV accelerates from 0 to 100 km/h (62.1 mph) in just 5.1 seconds; the top speed is electronically governed to 250 km/h (155.3 mph). In the NECD cycle, it merely requires 6.6 liters of fuel per 100 kilometers (35.6 US mpg) with emission of 174 g CO2/km (280.0 g/mi).