2004 Audi A8l Quattro 4.2 V8 88k Loaded on 2040-cars

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Audi commits two R18 E-Tron Quattros to final Sebring race for LMP1 cars

We were baffled a few weeks back when the American Le Mans Series and Grand-Am Rolex Sports Car Series announced new classes that will make up their combined racing program in 2014. Gone from the list is the Le Mans Prototype class, otherwise known as LMP1. The LMP1 class has long been the top dog of endurance racing, both in Europe and the US, so we couldn't figure out why this newly minted racing series was jettisoning it like yesterday's donuts.
It appears as if Audi is confused by the move as well. The German brand has announced it will participate in this year's ALMS opening round, the famed 12 Hours of Sebring, as it does every year, and bringing two Audi R18 E-Tron Quattro hybrid race cars with which to compete. Unlike every other year, Audi is treating this year's race as its potential swan song in this famous Florida race.
There's a good reason that Audi is so fond of the 12 Hours of Sebring, as it debuted the gas-powered R8R there in 1999 that kicked off its participation in the upper echelon of endurance racing. The R8R preceded the R8, which debuted at Sebring in 2000 and won that race, starting an amazing career for that car that included five more wins at Sebring. The R8 was followed by the R10, then the R15 and R18, and finally we wind up at today's R18 E-Tron Quattro - all winners, all dominant, all exciting to watch.

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.

Conquest and controversy conclude the 2014 Rolex 24 at Daytona [spoilers]

If you don't wish to know who won the 2014 Rolex 24 at Daytona, you should avert your eyes right now. We'll even give you a double-space to skedaddle...
For those of you still with us, the first race in the United SportsCar Championship (USCC) is done, but the discussions about it certainly won't end for a while. Daytona Prototypes claimed the first four overall places, the top spot taken by the No. 5 Action Express Coyote-Chevrolet Corvette DP driven by Joao Barbosa, Christian Fittipaldi, Sebastien Bourdain and Burt Friselle. The 16th and final caution of the race bunched the field up for an eight-minute sprint to the flag, so the first place getter finished just 1.4 seconds ahead of the No. 10 Wayne Taylor Racing Dallara-Chevrolet Corvette DP driven by Max Angelelli. Third place went to Brian Friselle in the No. 9 Action Express Chevrolet Corvette DP, 20 seconds down. Chevrolet power hasn't taken the overall win since 2003, eleven years later it scores a one-two-three-four. The No. 6 Muscle Milk/Pickett Racing ORECA-Nissan 03 scored fifth place, the top LMP2 finisher.
The Prototype Challenge class win went to the No. 54 CORE Autosport team of Colin Braun, Jon Bennett, Mark Wilkins and James Gue.