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Audi commits two R18 E-Tron Quattros to final Sebring race for LMP1 cars

We were baffled a few weeks back when the American Le Mans Series and Grand-Am Rolex Sports Car Series announced new classes that will make up their combined racing program in 2014. Gone from the list is the Le Mans Prototype class, otherwise known as LMP1. The LMP1 class has long been the top dog of endurance racing, both in Europe and the US, so we couldn't figure out why this newly minted racing series was jettisoning it like yesterday's donuts.
It appears as if Audi is confused by the move as well. The German brand has announced it will participate in this year's ALMS opening round, the famed 12 Hours of Sebring, as it does every year, and bringing two Audi R18 E-Tron Quattro hybrid race cars with which to compete. Unlike every other year, Audi is treating this year's race as its potential swan song in this famous Florida race.
There's a good reason that Audi is so fond of the 12 Hours of Sebring, as it debuted the gas-powered R8R there in 1999 that kicked off its participation in the upper echelon of endurance racing. The R8R preceded the R8, which debuted at Sebring in 2000 and won that race, starting an amazing career for that car that included five more wins at Sebring. The R8 was followed by the R10, then the R15 and R18, and finally we wind up at today's R18 E-Tron Quattro - all winners, all dominant, all exciting to watch.

Don't hold your breath for an Audi RS8

There was a time not so long ago when Quattro GmbH produced essentially one model at a time. But that time is behind us. These days it's expanding into a full-fledged performance division to rival Mercedes-AMG and BMW's M department. Quattro GmbH is currently building the Audi RS4 Avant, RS5 coupe and cabrio, RS6 Avant, RS7, RS Q3 and the TT RS coupe and roadster - not to mention the R8. And while it's showing no signs of slowing down, but the latest intel from across the pond suggests we shouldn't count on an RS version of Audi's flagship sedan.
This according to Car and Driver, which spoke to Stephan Reil, the chief engineer at Quattro GmbH. Reil says Audi works on a teutonically rigid performance formula: an RS model has to have 20 to 25 percent more power than the existing S version. Considering that the existing S8 makes 512 horsepower and the RS7 a solid 553, we're not sure Audi really needs anything more powerful. But by Reil's calculations, the RS8 would need to pack between 630 and 655 hp, which would put it well ahead of rivals like the 550-hp Jaguar XJR, the 540-hp BMW Alpina B7, the 523-hp Maserati Quattroporte and even the new 577-hp Mercedes-Benz S63 AMG - and in league only with the even more powerful S65 AMG, which in its outgoing form produced 630 hp.
The question then comes down to whether there are enough customers lining up for the S65 that Audi would want to poach away from Mercedes. Or perhaps more pertinently, whether it might end up just taking customers from the new Bentley Flying Spur, which is already offering 616 horsepower in an even more prestigious, if less performance-focused package. Either way you look at it, Audi is apparently steering clear.

Audi readying diesel PHEV models for US and Europe

With the racing pedigree provided by the Audi R18 E-Tron Quattro, you'd be forgiven for thinking that the German king of Le Mans is capitalizing on the connection between its road cars and race cars at every opportunity. Maybe there's an entire range of Le Mans Editions for the automakers diesel-hybrid offerings, with perhaps Tom Kristensen acting as the brand's spokesperson for the technology in Europe. You'd be wrong, though, because despite the R18's overwhelming successes in endurance racing, Audi the road-car manufacturer doesn't offer a single diesel-hybrid production car.
This factoid will hopefully be as short lived as it is disappointing, though, as a diesel-electric is around the corner, according to the brand's tech boss, Ulrich Hackenberg. In fact, it gets better than a mere diesel-hybrid; it will be a plug-in diesel-hybrid, only the second to hit the market, alongside the European-market Volvo V60.
According to Hackenberg, the new tech will be the result of a marriage between the brand's well-received 3.0-liter, TDI V6 with an electric motor. The next-generation Audi Q7 (shown above) will be the initial recipient, confirming previous reports that claimed a PHEV TDI could come to the next-gen CUV. Its MLB architecture, meanwhile, would allow the plug-in-hybrid-diesel powertrain to be fitted easily enough to the A8 luxury sedan. While the new Q7 should hit the market at some point in 2015, it's unclear when the PHEV TDI model could see the light of day.