2003 Audi Tt Roadster, 225hp Quattro 6-speed, Baseball Seats ** Only 29k Miles** on 2040-cars

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Overnight action from the 24 Hours of Le Mans

We won't go into a recap here, but there are still leading positions being fought for in all classes - it's so close that leads are changing when a car goes into the pits. We'll let the recap wait until the end of the race, so for now enjoy some shots from last night's action at the 24 Hours of Le Mans.

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.

Audi Self-Driving Car Gets First Permit In California

Computer-driven cars have been testing their skills on California roads for more than four years - but until now, the Department of Motor Vehicles wasn't sure just how many were rolling around. That changed Tuesday, when the agency issued testing permits that allowed three companies to dispatch 29 vehicles onto freeways and into neighborhoods - with a human behind the wheel in case the onboard computers make a bad decision. The German automaker Audi was first in the state to receive a self-driving car permit and already has plans to test drive an autonomous A7 around the Bay Area, according to the Los Angeles Times. These may be the cars of the future, but for now they represent a tiny fraction of California's approximately 32 million registered vehicles. Google's souped-up Lexus SUVs are the biggest fleet, with 25 vehicles. Mercedes and Volkswagen have two vehicles each, said Bernard Soriano, the DMV official overseeing the state's "autonomous vehicle" regulation-writing process. A "handful" of other companies are applying for permits, he said. The permits formally regulate testing that already was underway. Google alone is closing in on 1 million miles. The technology giant has bet heavily on the vehicles, which navigate using sophisticated sensors and detailed maps. Finally, government rules are catching up. In 2012, the California Legislature directed the DMV to regulate the emerging technology. Rules that the agency first proposed in January went into effect Tuesday. Among them: - Test drivers must have a sparkling driving record, complete a training regimen and enroll in a program that informs their employer if they get in an accident or are busted for driving under the influence off hours. - Companies must report to the state how many times their vehicles unexpectedly disengage from self-driving mode, whether due to a failure of the technology or because the human driver takes over in an emergency. They also must have insurance or other coverage to pay for property or personal injury claims of up to $5 million. California passed its law after Nevada and Florida and before Michigan. The federal government has not acted, and national regulations appear to be years away. It's impossible to know the total number of self-driving cars being tested on public roads because, unlike California and Nevada, Michigan does not require special permits to test self-driving cars on public roads.