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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:

US diesel model count to double for 2014?

While diesel cars are popular on most other continents, these less-complex alternative to hybrid-electric vehicles have yet to gain major traction in the US. As an increasing number of light cars and trucks start to offer these fuel-efficient engines, though, sales are expected to climb as well. While BMW, Mercedes-Benz and the Volkswagen Group (Volkswagen, Audi and Porsche) continue to lead the way, more non-German automakers like Mazda, Nissan, Chrysler and General Motors are starting to get serious about diesel in America.
TheDetroitBureau.com reports that the 2014 model year will see the number of diesel vehicles offered in the US double to about 40 nameplates, but the news gets even better for fans of these torquey and efficient powerplants. LMC Automotive has released data about future expectations of diesel cars in the US, and it predicts that sales should be very close to one million units in 2015 (up from an expected 600,000 units this year). By 2018, LMC's calculations suggest that sales will more than double from this year's expected totals accounting for almost 8 percent of new light-vehicle sales.

Audi kicks off A3 celebrity-fest marketing campaign with Dues

Audi is desperate to appeal to young people with its new 2015 A3 sedan. It's planning launch parties around the country to present the new model to these younger buyers, and its latest tactic is a series of videos starring celebrities the company considers trailblazers to further captivate youthful buyers.
The advertising campaign starts with a spot titled Dues starring comedian Ricky Gervais, chef David Chang, photo journalist Lynsey Addario, comedian Kristen Schaal, boxer Claressa Shields, artist collective Cyrcle, and church choir Voices of Destiny. It's being followed up with seven, minute-long online documentaries called Uncompromised Portraits about the folks featured in the new ad. Audi believes that they are all trailblazers who have forged their own way, and it's all supposed to fit with the A3's slogan of "Stay Uncompromised."
Dues will play during the NCAA March Madness tournament. Audi is also running two, 30-second commercials during the games to highlight the sedan's technology and two, 15-second ads to promote its Quattro all-wheel-drive system.