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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.

Next Audi TT RS comes in 2016, manual transmission doesn't

This line comes from our review of the 2012 Audi TT RS: "Did we mention that the 2012 TT RS is only available with a manual transmission?" When we review the next-generation TT RS, expected to launch next year, we'll have to rewrite that line as: "Did we mention that the TT RS is not available with a manual transmission?" That's the word from Car and Driver, which has heard that the superheated little coupe will only come with the seven-speed dual-clutch gearbox found in the Euro-market RS3 Sportback. The first generation came with a dual-clutch and a manual transmission in Europe, but the unit for our market required the laying on of hands to get from one cog to another. If we don't get another, the blow will be all the more painful because Audi's manual transmissions are so good. Our assessment summed up the last one thus, "With a short, precise throw and excellent action, the transmission is a mechanical work of art." Good news? Volkswagen says the installed DQ500 dual-clutch is faster, more refined, and more reliable. As well, power from the reworked 2.5-liter, turbocharged five-cylinder should rise from 360 horsepower to "around 400." You'll just be asked to keep your hands off of it. The first-gen car only came here after a successful Facebook petition gathered more than 11,000 signatures in a month, we wish Audi had given us a chance to weigh in on this, too. Although we will probably get it later next year as a 2017 model, we could see it at the Frankfurt Motor Show in two months. Related Video:

Audi unveils A3 Sportback G-Tron with bi-fuel power, 808-mile range

By this time next year, the Audi A3 Sportback will be offered with a variety fuel-efficient powertrains ranging from diesel to the all-electric E-Tron, but perhaps the most interesting is the all-new G-Tron model, which uses Audi's innovative carbon-natural compressed natural gas called e-gas. Previously called A3 TCNG, we first heard about this technology last year, but now Audi has confirmed that this low-emission, sustainable-fuel will debut by the end of this year on the A3 Sportback G-Tron.
To create this e-gas, a plant in Werlte, Germany uses electricity to split water into hydrogen and oxygen. As hydrogen fuel cell vehicles become more popular, Audi says that this process could also be used to produce hydrogen fuel, but to create CNG, it mixes the hydrogen with carbon dioxide to create "synthetic methane." Since it is identical to the CNG available today, Audi's e-gas can be shipped and stored using the existing CNG infrastructure. Making the whole process even greener, Audi obtains the CO2 for this process from a nearby biogas plant, which would otherwise be released into the atmosphere.
Differentiated from the regular versions of the A3, the G-Tron features a pair of tanks under the rear cargo floor holding 15.43 pounds of CNG, which can power the car for almost 250 miles. What's more, the A3's conventional gasoline tank is still in place, giving the car an addition 560 miles of range. In total, that means the A3 G-Tron has a driving range of more than 800 miles. To run on both CNG and gas, Audi made changes to the car's 1.4-liter four-cylinder engine (including the turbo, cylinder head and fuel injection system) and catalytic converter.