2006 Audi A6 Quattro Base Sedan 4-door 3.2l on 2040-cars

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Notes and notations on the 2014 Rolex 24 at Daytona [w/video]

This year is the 52nd edition of the Daytona 24 Hours. The 2014 Rolex 24 at Daytona is also the first race of the year in the brand new TUDOR United SportsCar Championship (TUSCC) With the merger of the American Le Mans Series and Grand-Am Rolex Sports Car Series rewriting and revising the rules of American sports car racing right up until yesterday, we've made the journey to an intermittently wet and constantly freezing Daytona Beach, Florida with Audi to watch the new R8 LMS and every other competitor explore the limits of those rules on the track.
With a ton to cover - and a couple of videos below to watch, including some slo-mo qualifying footage and a hot lap in an R8 LMS - let's not waste time with chit-chat, eh?
Quick things to know about the classes and the leader-light system:

Audi celebrates 25 years of TDI

Nope, the diesel engine never really did go out of style for Audi. Now, the German automaker has released a video reminding the world of its persistence with the oil-burners and is commemorating the Silver Anniversary of Audi's first commitment to turbodiesels in 1989. And, yes, there are some road racers shown in the clip, so some of those bad boys actually move pretty well. Audi engineers on camera admitted to some of the early TDI engines being "slow" but still valuable for their torque and, obviously, their fuel economy relative to gas-powered engines. A bunch of tinkering later, though, and Audi says its diesels can be a legitimate "part of a performance car" and has even overcome the issue of noisiness that's often associated with diesels. The automaker made some news in these parts a few years back when its Audi A3 TDI won the 2010 Green Car of the Year at the annual LA Auto Show in late 2009, and the model even succeeded a fellow diesel (the Volkswagen Jetta TDI) to boot. Granted, diesel sales aren't nearly as popular in the US as they are in Europe. Still, Audi last year boosted its diesel sales in the US by 40 percent to 10,076, which was about a tenth of what sister company Volkswagen sold in diesels last year in the States. And things have looked even rosier this year for Audi's TDI sales. Through June, Audi diesel sales have almost quadrupled from a year earlier to more than 8,100 units. Check out the 150-second video on Audi's 25-years of TDI production below.

Audi replaces Mercedes as official vehicle supplier to the IOC

The automotive sponsor of the International Olympic Committee for the past 22 years has been Daimler-Benz. No more, as Audi has just signed a four-year deal to be the official auto supplier to the folks who keep the torch alight and on the move. Audi will supply vehicles for the IOC's headquarters in Lausanne, Switzerland and the organization's international events.
In case you're remembering all the stories about BMW and the London Olympics last summer and wondering where Mercedes-Benz was in all of that, the answer lies in the numerous mouths at the Olympic trough. The IOC is the organization and oversight body of the Olympics - much like the way the FIA oversees world motorsport. BMW, though, sponsored the London Organizing Committee for the Olympic Games, so during the games IOC reps rode in Benzes, LOCOG and its guest dignitaries rode in BMWs.
The Volkswagen Group has other ties with the Olympics as well: The Group will be the official vehicle partner for the winter Olympics in Sochi, Russia in 2014, and Audi currently partners the national Olympic federations of Germany, Finland, Russia and Switzerland. The press release below announcing the partnership has all the official details.