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2016 Audi R18 whooshes around Sebring to test for WEC

The 2016 Audi R18 is a radically different endurance racer than the model it replaces. The designers drape the chassis in an angular body rather than the previous curves, and the engineers added lithium-ion batteries for energy storage. Now, we get to see these big changes in motion thanks to a video of the new car testing at Sebring. Like previous iterations of Audi's diesel-fueled racers, the latest R18 is quiet around the track. It seems to sneak up on corners with just a whoosh and a whir from the powertrain. The updated design also looks a lot better in motion than in static photos. Audi had a rough time in the 2015 FIA World Endurance Championship after losing to rival Porsche both at Le Mans during the summer and in the manufacturers' standings at the end of the year. Related Video:

Audi to unveil S1 hot hatch at Geneva Motor Show

Audi has been toying with the idea of a hot hatch based on the A1 premium city car for some time now. It rolled out the 500-horsepower A1 Clubsport Quattro concept at the Wörthersee gathering a couple of years ago, then put its form (with half the power) into limited production with the 252hp A1 Quattro (pictured above) shortly thereafter. What it hasn't done is offer a mainstream S1 that people can actually get their hands on, but that's all about to change.
Following spy shots of numerous prototypes, Auto Express claims to have it on good authority that the new S1 will be unveiled at the upcoming Geneva Motor Show in March. Though likely less aggressive in its visual impact, the S1 is expected to get almost as much power as the aforementioned A1 Quattro, with a 2.0-liter turbo 4-cylinder sourced from the larger S3 but detuned to 230 hp.
A six-speed dual-clutch transmission is expected to drive all four wheels - something for which the platform was not originally designed but was later adapted to accommodate - though the availability of a six-speed manual remains in question. Unfortunately the A1 was never destined for the North American market, so as much as we might want one (and as much as Ingolstadt may be motivated to take a bite out of the Mini market), we wouldn't expect to see it roaring into American showrooms.

Audi R8 LMS GT4 debuts in New York, a ready-made race car

The new Audi R8 LMS GT4 race car has made its debut at this year's New York Auto Show. Since 2009, the Audi R8 LMS GT3 has been available for customer purchase, but this new model is intended to be even more affordable. LMS GT-class racing is some of the most entertaining out there. Unlike racing series such as Formula 1, NASCAR, or even the World Rally Championship, GTE, GT3, and GT4 cars are still based heavily on cars you can find on dealer lots today. The GT4 class was created to have a true entry-level racing series. Homologation keeps the cars closer to their production counterparts than any of the other GT classes. Engines, bodywork, and suspension are all similar to production versions, though substantially beefed up for racing. In the case of the Audi R8 LMS GT4, more than 60 percent its parts are shared with the R8 coupe. That means parts are plentiful and relatively affordable. There are some significant changes between the production and racing versions. First, the V10 in the road car is actually far more powerful. The R8 LMS GT4 is limited to 495 horsepower, though that can vary slightly to meet different regulations. Also, rather than having Audi's wonderful Quattro all-wheel drive system, the R8 LMS GT4 is rear-wheel drive. Power is sent to the wheels through a seven-speed dual-clutch transmission. Though the car is set to make its debut next month at the Nurburgring 24 Hours, it won't actually be competing until the start of the 2018 season. Audi is simply tuning the car at different tracks before asking for approval at the end of the year. Pricing hasn't been announced, but expect it to fall between the $145,000 of the RS3 LMS and the $450,000 of the R8 LMS GT3. That's not nothing, but in the world of professional racing, it's a relative bargain. Related Video: