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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 is working on a suspension that gets power from bumpy roads

Regenerative brakes aren't new. They're on virtually every hybrid and EV, and they're even starting to pop up on traditional gas-powered cars, like with the i-ELOOP-equipped Mazda6. But even with these systems, cars can get more efficient, and Audi thinks it found yet another source of wasted energy. The source? The suspension. The idea is to turn the kinetic energy that goes into the dampers into usable energy instead of as waste heat. Audi isn't the first auto company to come up with regenerative suspension – nearly three years ago, ZF introduced its GenShock technology, which used a valve attached to traditional, oil-filled hydraulic shocks to recapture kinetic energy from movement caused by bumps in the road. Audi's prototype technology, which it calls eROT, replaces traditional dampers with horizontally oriented electromechanical rotary dampers. eROT is apparently short for electromechanical rotary damper. Neat. In testing, eROT recovered an average of 100 to 150 watts on a typical German road, three watts from a fresh piece of pavement, and 613 watts on a rough stretch of tarmac (wattage is calculated as power over time, so this is actually the rate at which the system harvests energy). The dampers channel that energy to a tiny, 0.5-kWh, 48-volt battery. The prototype is claimed to cut CO2 emissions by three grams per kilometer (4.8 grams per mile), while the company believes a future production version could save up to 0.7 liters of fuel per 100 kilometers of driving. Converting the savings to American miles per gallon isn't easy, so we'll use a practical example. In the US, the Q7's supercharged 3.0-liter V6 returns a combined rating of 21 miles per gallon, which works out to 11.2 liters per 100 kilometers. Apply eROT's 0.7L/100km savings, and the Q7's economy would improve to 10.5L/100km, or 22.4 mpg, a 1.4-mpg improvement. That's not huge, but because math, 0.7L/100km is more dramatic on a more fuel efficient vehicle – taking an A3's 27-mpg combined rating and adding eROT would drive efficiency up 2.4 mpg, for example. There are a few other big benefits beyond fuel and emissions savings – Audi claims eROT provides a more comfortable ride than traditional active suspensions, because engineers can tune the compression and rebound strokes independently of each other. Beyond that, the horizontally oriented rear suspension geometry means more cargo space, since the dampers don't poke up into the cabin like they normally do.

Upcoming Audi Q8 coupe-like crossover spied in the snow

At the 2017 Detroit Auto Show, Audi debuted the Q8 concept, a thinly veiled version of its upcoming coupe-like crossover that's set to compete with the BMW X6 and Mercedes-Benz GLE-Class Coupe. We now have spy photos that give us our first look at the Q7-based production version, and through the camouflage we can see how telling Audi's Q8 concept really is. All of the major traits from the concept are present on the production model, including that massive, oversized grille and aggressive roofline. In fact, the entire front end appears to carry over from the Q8 concept, just toned down a few notches. The stainless steel accents on the air intakes are gone, and the headlights, though similar in shape, look more traditional than those on the concept. The small cutouts between the grille and the hood look to be gone as well. Around the side, we can see that the concept's sharply angled rear window and sloping roof have are present, mostly unmodified. The Q8's beltline doesn't appear quite as high as the concept's, but the windows look to be the same relative shape. The big creases above the wheel arches have been reduced slightly. Also, although the Q7 and Q8 will share a platform and therefore a wheelbase, the Q8 is slightly shorter overall. The smaller front and rear overhangs, combined with the tight roofline, give it a high-riding hatchback profile, similar to the Porsche Macan. The changes between the concept and production model are most evident around back. The bumper mounted exhaust pipes have been dropped, at least on this version. The upright vents on the outside of the tail lights have also been dropped. The camouflage around the rear is heavy, so it's difficult to to say how much of the body-width tail light carries over, though the light itself seems to shine through in the same shape. No word on when we'll see a production version, but expect to see the Q8 concept around for a few more shows. Look for more details on the engine, including whether or not the plug-in hybrid powertrain carries over from the concept, closer to the full reveal. Related Video: