2013 Audi S4 Supercharged Dsg Transmission With Sport Differential 3,300 Miles on 2040-cars

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Researchers halfway to cutting carbon fiber costs by 90%

Carbon fiber has been utilized for decades to build racecars, as a means to cut weight while maintaining strength. But until recently, the space-age material has been largely absent from the street on anything but supercars because of the expense to use it. Recently, BMW signaled a major shift in that trend when it starting using carbon fiber reinforced plastic panels on the i3 and i8. This relatively small scale start might be just the beginning; the German company believes that a breakthrough to inexpensively manufacture the lightweight stuff is just on the horizon.
MAI Carbon Cluster Management GmbH counts BMW, Audi, Airbus, the German government and many other organizations as supporters, and it's researching how to make carbon fiber cheaper to produce, according to Automotive News Europe. The company thinks it can reduce costs by 90 percent in the near future. "We've certainly reached a halfway point on our cost-cutting target for suitable carbon-fiber parts," said project head Klaus Drechsler to Automotive News Europe.
Unfortunately, it isn't entirely clear just what MAI Carbon is doing to make such a huge leap possible. However, a recent post on the company's website talks about a new form a carbon fiber using a thermoplastic matrix that could be cured in less than three minutes. That's compared to about 90 minutes in the traditional process with an autoclave.

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.

More details on next Audi A4 mooted, including PHEV

With just under two more years until the next-gen Audi A4 hits the streets, it's not surprising that details are starting to leak out. The Brits from Autocar are reporting some information on the 2015 A4, although it isn't clear where any of it came from.
The most substantial news might be in regards to the plug-in hybrid version of the car. We've known for a couple years now that an A4 PHEV was being planned, but the report indicates that a trio of plug-in configurations are being planned, equipped with a 2.0-liter gas engine, a 2.0-liter diesel engine or a 3.0-liter supercharged V6. All engines will be paired with an eight-speed automatic transmission, and the A4 plug-in is said to have an all-electric range of up to 31 miles.
In terms of styling, the next A4 shouldn't stray too far away from Audi's current design language, but it will introduce a new version of the automaker's signature grille. Despite being about the same size as the existing A4, the fifth-generation model will drop some pounds thanks to various weight-saving techniques with the most obvious being aluminum body panels. Based on this info, we should see the A4 sedan and wagon in April 2015, an Allroad later in the year and a redesigned A5 lineup hitting the scene in 2016.