2009 Audi A4 Base Sedan 4-door 2.0l on 2040-cars

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Audi builds 5-millionth vehicle with Quattro

Quattro, the trademark name Audi has put on its all-wheel-drive system engineered for passenger vehicles, recently celebrated its five-millionth installation. The driveline has been offered in more than 140 different vehicles since its introduction more than three decades ago.
The all-wheel-drive technology made its world debut at the 1980 International Geneva Motor Show, beneath the floorpan of the Quattro Coupé, a low-volume two-door. It didn't take consumers long to embrace Audi's innovative approach. While most four-wheel-drive systems at that time utilized heavy transfer cases or second cardan shafts, Quattro was virtually tension-free, light, compact and efficient. Most importantly, enthusiasts found it was especially suitable for sports cars.
Today, the automaker offers Quattro on its full line of passenger vehicles and it is unquestionably successful (the technology enjoyed a 43 percent take rate in 2012). On models with transverse-mounted engines (A3 and TT), Audi uses an electronically controlled multi-plate clutch with hydraulic actuator. Under normal conditions, the clutch sends power almost exclusively to the front wheels (if wheel slippage occurs, up to 100 percent of the torque may be sent to the rear). Vehicles with transverse-mounted engines (A4, A5, Q5, etc...) use a self-locking center differential sending 40 percent of the engine torque to the front axle and 60 percent to the rear under normal conditions (it is able to send the majority of the power to the axle with better traction when needed). The highest-performing Quattro systems use torque vectoring to further improve cornering grip and speeds.

Automakers teaming with Google to bring Android to cars this year

Remember how we mentioned that Hyundai would be offering a BlueLink infotainment app for Google Glass? And how last week, we told you about a rumored partnership between Audi and Google? Well, both of these things were just part of a much bigger deal.
Google has teamed up with Audi, General Motors, Hyundai and Honda to form the Open Automotive Alliance. With the help of chipmaker NVIDIA, the group aims to bring Google's Android operating system to the auto industry on a large scale. While the speed with which Android will be adopted by the industry remains unclear - the OAA's own press release says "timing for each automaker will vary" - we could see the first Android-equipped vehicle by year's end.
For those that keep their ear to the ground in the automotive tech world, this is a big deal for more than just one reason - Honda, GM and Hyundai are all partners in the Siri Eyes Free program from Apple. The future of that relationship now that three of its automakers are in bed with Apple's arch-rival, though, could be under threat.

2015 Audi TT picks up the style, pace with Xcar

With the original TT, Audi arguably valued style over substance. The equation reversed - at least to an extent - with the second-generation model. But with this latest MkIII version, the German automaker appears to have finally imbued its compact sports car with the performance to back up its runway looks.
That is, at least, what the team at Xcar has to say, having driven the latest Audi sports coupe on the rainy roads of Scotland - taking in its crisp lines, sharp handling, nippy performance and impressive technology along the way. But don't let us spoil it for you: Watch for yourself to see how the new TT measures up against its stylish forebears.