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Audi R8 lines up as safety car for Rolex 24 at Daytona

This weekend a new era begins in American sports car racing with the Rolex 24 at Daytona to kick off the new United SportsCar Championship, the freshly inked union between the Grand Am and American Le Mans Series. There'll be a wide variety of machinery lining up on the grid at the Florida speedway, including race-ready versions of the sports cars you can drive on the road, plus Daytona Prototypes, Le Mans Prototypes and even the DeltaWing. But at the front of the pack will be the Audi R8 5.2 FSI.
That's because Ingolstadt's flagship has been named as the official safety car for this, the 52nd annual Rolex 24 at Daytona. And so the R8 becomes the first pace car pressed into service for the United SportsCar Championship, although the model also paced last year's race (pictured above) when it was under the auspices of the Grand Am series.
The car in question appears to bear little in the way of modifications over the showroom version, save for some requisite graphics and maybe some emergency lighting to make it more visible - because while you wouldn't miss an R8 slicing its way through ordinary traffic on the road, it's another story entirely in a field full of competition machinery. Audi points out that the road-going R8 shares a good 50 percent of its components with the R8 LMS competing in the race, including its 5.2-liter V10 engine that's available this year with a new seven-speed dual-clutch transmission.

Audi R8, Lamborghini Huracan could get twin-charged five-cylinder

Engine downsizing and forced induction are some of the biggest trends in automotive powertrains today because. They offer the chance to reduce emissions and boost fuel economy, while possibly maintaining power. The shift is already happening to performance cars with turbocharged four-cylinders finding their way into the Ford Mustang, Chevrolet Camaro, and future Porsches. Now, there are rumblings of a tiny chance for a similar change coming for the Lamborghini Huracan and Audi R8. Why the new powertrain? China. While the market there might have slowing growth, it's still a major country for auto sales. The annual taxes on cars there also happen to be based on engine displacement, and there's a 40 percent rate on those over 4.0-liters, according to Car and Driver. The obvious answer to this conundrum is to build a smaller displacement, forced induction engine for the R8 and Huracan. Car and Driver points to the new turbocharged and electrically supercharged, 2.5-liter inline five-cylinder from the recent Audi TT Clubsport Turbo concept as a possible solution. Audi's e-turbo technology runs off a 48-volt electrical system and lithium-ion battery to produce a total of 600 horsepower and 479 pound-feet of torque in the prototype. With this mill, horsepower would barely shrink compared to the R8 V10 Plus and Lambo, but it actually makes more peak torque than their 5.2-liter V10s. While this is all theoretically feasible, take the possibility with a big grain of salt for now. According to Car and Driver, Quattro GmbH's Stephan Reil says that there's no work currently underway to fit the twin-charged five-cylinder, "but it has been talked about." That means such a vehicle is likely years away, if ever. In the meantime, a diesel version of the e-turbo setup is on the way the in the SQ7. Related Video:

2017 Audi R8 First Drive

You might think the new Audi R8 is a Lamborghini in a business suit. You'd be wrong; the Huracan is an R8 in a Heinlein shock trooper suit. This is the most raucous, rowdy Audi yet, and it's most certainly a supercar – even when parked next to its bawdier Italian cousin. Although the Huracan has been on the street for nearly a year now, the new R8 and the Lambo were developed in parallel. Audi handled most of the engineering workload, with the Huracan receiving Lamborghini's styling and tuning finesse on top of its Audi-built V10 engine and seven-speed dual-clutch transmission. The R8 gets Audi's motorsports-inspired best. Tally it all up and you have two very different cars built from very similar components. Of course, that could also be said of the R8 and its racing doppelganger, the R8 LMS, the racecar built for WEC endurance racing. That car, in fact, is more closely related to the R8 than is the road-going Huracan – the wheelbases are the same, 50 percent of the parts are shared, and the bodies-in-white are built on the same line. The racecars are pulled off line for occasional tweaks or additions, then slotted back in to run through most of the same workflow as the R8s that will eventually end up on the streets. Like a new pair of your favorite shoes, the new R8 is familiar and foreign at the same time. This development program pulls from the best of a legendary supercar brand's flair for presence and idiosyncrasy. It also takes lessons from the company's customer racing effort, as well as Audi's own impeccable taste in road manners and clean, elegant design. The end result is an inspired supercar with daily-driver comfort and a surprisingly aggressive side. Like a new pair of your favorite shoes, the new R8 is familiar and foreign at the same time. It's more comfortable and compliant on the street, thanks to a new chassis that's 40 percent stiffer, allowing for a more forgiving suspension tune. The completely reworked 5.2-liter V10 engine has a Great White bite to go with its Rottweiler bark, but only after you provoke it from polite mode with a press of either the Drive Select button or the exhaust sound switch. The seats are comfortable – that can be said for both the standard sport seats or optional carbon-shell, race-style buckets. Wrapped in a cabin that's much more futuristic and forward-looking than the last R8, the overall driving experience is refined, luxurious, and high-tech.