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The 2017 Porsche 911 RSR goes mid-engine, purists be damned

Porsche unveiled its World Endurance Championship and IMSA WeatherTech Championship competitor with the 2017 911 RSR. And this 911 is different from the rest, as the 4.0-liter flat-six engine powering this beast is in front of the rear axle, not behind it. That's right, this 24 Hours of Le Mans competitor ditches the iconic rear-engine layout. Porsche isn't talking specifics on how exactly things are arranged back there. The engine is new, now based on the 991 911's block instead of the previous Mezger motor that's been used for years. The transmission design is new as well – it would have to be to accommodate the new location relative to the engine. The racecar has been engineered to meet the LM-GTE class, where it will go up against other mid-engine cars like the Ford GT and Ferrari 488 GTE. Moving the engine to the middle has given Porsche the ability to fit the 911 RSR with massive bits of aero, like the humongous rear diffuser that looks like it would be more at home on a machine of war. The only thing that can compete with the diffuser for size is the top-mounted rear wing, which shares a similar design to the one found on the 919 Hybrid. Going back to the engine, the direct-injected boxer motor, depending on the size of the restrictor, generates as much as 510 horsepower and sends all of its fury to the rear wheels. The engine is paired to a six-speed sequential gearbox, which drivers can employ through paddles on the steering wheel. The new engine doesn't have a lot of weight to push around as the 911 RSR, as required by regulations, weighs 2,740 pounds. Speaking of weight, the engine layout isn't the only change for the 911 RSR. For 2017, the car ditches its steel body for one that's made out of carbon fiber. The body attaches to the chassis via quick-release fasteners, making the vehicle easier to service as exterior elements can be removed with minimal effort. The racecar also gets a radar-based collision system – aptly named the "Collision Avoid System" – which is meant to limit the 911 RSR's encounters with faster LMP prototypes. Only time will tell if the new layout and aerodynamic components help the 911 RSR beat its competition. But there will be plenty of opportunities to see the racecar in action as Porsche plans to run the 911 RSR in 19 races during the 2017 season, the first of which will take place at the IMSA opener on January 28th at Daytona, where the racecar will make its track day debut.

Porsche 911 R, GT3 variant with manual trans, spotted

The Porsche 911 GT3 is still a strong enthusiast choice in the 911 range, and the GT3 RS has gone more hardcore. But both versions are PDK-only. The upcoming Porsche 911 R, spied undergoing testing in Germany, is tipped to adopt the naturally aspirated engine from the aforementioned GT3, producing somewhere in the neighborhood of 475-500 horsepower. Only instead of an automated dual-clutch transmission, it'll feature a proper manual. Other changes are expected in the form of skinnier tires to provide less grip but a more approachable limit of adhesion. It may or may not feature a small ducktail spoiler at the back. We wouldn't be surprised to see it ditch the four-wheel steering system, either. Weissach may also give it some retro cues as well, but the question all those purists will be asking is how many Porsche will make. The last 911 R yielded only 22 examples way back in 1967. This time they'll have to make far more, but we wouldn't expect this particular version to be exactly what you might call "ubiquitous." No matter how rare, it'll definitely be the purist's choice. Related Video:

Porsche trio seals endurance drivers' title

Fifth place. That's all it took for the Porsche team to seal the drivers' title in the 2015 FIA World Endurance Championship. And that's just what they did this weekend in the 6 Hours of Bahrain. The leading lineup of Timo Bernhard, Brendon Hartley, and Mark Webber drove the #17 Porsche 919 Hybrid to the drivers' title to cap a dominant season for the Weissach team. Porsche already won the pinnacle race at Le Mans this past summer, and drove home the manufacturers' title at the penultimate round in Shanghai. The championship-winning trio of Bernhard, Hartley, and Webber won four out of the total eight rounds this season – including the races at the Nurburgring, Circuit of the Americas, Fuji, and Shanghai. That gave them 166 points in the final standings, besting the 161 achieved by the Audi team of Andre Lotterer, Marcel Fassler, and Benoit Treluyer, who won at Silverstone and Spa. In beating Audi to the top honors in the championship and at Le Mans, Porsche has completely locked its corporate cousins (and chief rivals) out of the winner's circle for the first time in years. Last season saw Toyota win both titles in the WEC, but Audi still won at Le Mans. Audi won both titles in the first two seasons of the championship, and the French endurance race all but three times in the past 16 years. The last time Audi was completely shut out was in 2009, when Peugeot won at Le Mans and Aston Martin took both titles in the associated Le Mans Series with its Lola-based LMP1 prototype. This latest achievement only adds to Porsche's unsurpassed sports car racing trophy cabinet. The German outfit won 12 manufacturers' and teams' titles (and another six drivers' titles) in the 1970s and 80s under the previous World Sportscar Championship. It has won at Le Mans a record 17 times, and another 18 each at Sebring and Daytona. Porsche also took the checkered flag at the Targa Florio 11 times, won the Monte Carlo rally four times, the Dakar twice, and with TAG and McLaren, won three drivers' titles, two constructors' titles, and 25 grands prix in Formula One. Related Video: Porsche works drivers win the FIA World Endurance Championship drivers' title The new champions: Timo Bernhard, Brendon Hartley and Mark Webber Stuttgart.