2004 Audi A6 Luxury Sedan 4-door 3.0l on 2040-cars

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Porsche, Audi team up for tech: autonomy, EVs, hybrids and more

Porsche and Audi have been working on a number of important technologies for future vehicles. The two luxury automakers, both part of the Volkswagen Group, have mostly appeared to guard the space between their brands despite some shared engines and a platform. While their goals may not always overlap – Porsche has shied away from fully autonomous driving, for instance ­– the two brands have decided they could move more quickly into their respective futures by putting their heads together. In that spirit, Audi and Porsche are partnering up for a "shared vehicle architecture strategy of the future." This collaboration will focus on future mobility, including the development electrification, digitization, and autonomous driving technology. And the teams have knowledge and resources to share with one another. Porsche is moving fast with electrification, adding more hybrid systems to its models and preparing to launch the ultra-fast-charging Mission E electric car. Audi has been pursuing autonomous driving, connected vehicle and V2X tech, and Shared Fleet programs. Combining the best and brightest of both companies should help accelerate R&D. Even if one or the other company doesn't put all of the co-developed technologies into its vehicles, they'll both be learning the lessons, and sharing resources should help keep costs in check. "We will cooperate wherever it makes sense," says Porsche Board of Management Chairman Oliver Blume. "But we will also be very careful to maintain the differentiation between our brands. A Porsche is always a Porsche, and that will remain so in the future." Detail are still scarce, but Audi and Porsche will pin down a more a more specific sharing strategy as they develop their plan through 2025. While the cars continue to look and drive differently, expect Porsche and Audi to share more components and digital capabilities moving forward. Related Video:

These are the cars with the best and worst depreciation after 5 years

The average new vehicle sold in America loses nearly half of its initial value after five years of ownership. No surprise there; we all expect that shiny new car to start depreciating as soon as we drive it off the lot. But some vehicles lose value a lot faster than others. According to data provided by iSeeCars.com, trucks and truck-based sport utility vehicles generally hold their value better than other vehicle types, with the Jeep Wrangler — in both four-door Unlimited and standard two-door styles — and Toyota Tacoma sitting at the head of the pack. The Jeep Wrangler Unlimited's average five-year depreciation of 30.9% equals a loss in value of $12,168. That makes Jeep's four-door off-roader the best overall pick for buyers looking to minimize depreciation. The Toyota Tacoma's 32.4% loss in initial value means it loses just $10,496. The smaller dollar amount — the least amount of money lost after five years — indicates that Tacoma buyers pay less than Wrangler Unlimited buyers, on average, when they initially buy the vehicle. The standard two-door Jeep Wrangler is third on the list, depreciating 32.8% after five years and losing $10,824. Click here for a full list of the top 10 vehicles with the least depreciation over five years. On the other side of the depreciation coin, luxury sedans tend to plummet in value at a much faster rate than other vehicle types. The BMW 7 Series leads the losers with a 72.6% drop in value after five years, which equals an alarming $73,686. BMW's slightly smaller 5 Series is next, depreciating 70.1%, or $47,038, over the same period. Number three on the biggest losers list is the Nissan Leaf, the only electric vehicle to appear in the bottom 10. The electric hatchback matches the 5 Series with a 70.1% drop in value, but since it's a much cheaper vehicle, that percentage equals a much smaller $23,470 loss. Click here for a full list of the top 10 vehicles with the most depreciation over five years.

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.