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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.

Audi rumored to leave top-tier endurance racing after 2017

Volkswagen's ongoing diesel scandal is turning out to be an expensive problem for the German automaker. With a recent settlement expected to cost the company up to $14.7 billion, the company is scrambling to find ways to save cash. In light of this, Audi could be pulling out of the highest class of endurance racing, which it has dominated for years. A report from Germany's Auto Motor und Sport, indicates that Audi has already finalized the automaker's departure from the World Endurance Championship's top-tier LMP1 class after the 2017 season. Another report by Autocar cites an unnamed insider to corroborate the LMP1 exit rumors. The report fingers the VW Group's ongoing diesel scandal's financial fallout as the main culprit for Audi bowing out of LMP1. The move to could also be due to the group's decision to move away from diesel technology. Audi's LMP1 car, the R18, utilizes a V6 turbo-diesel engine. The Porsche 919 Hybrid, on the other hand, uses 2.0-liter turbocharged V4 engine that runs on gasoline. Audi has won the legendary 24 Hours of Le Mans 13 times since 1999, making Audi an unstoppable force in endurance racing. Porsche, Audi's corporate sibling, reentered endurance racing with a LMP1 competitor of its own in 2014 and won the constructor's championship last year. Audi's decision to leave LMP1 could give Porsche a shot at creating its own Le Mans-winning dynasty. Autocar reports that Audi is expected to continue fielding cars in other WEC classes, like GT3 and GT4, and perhaps the brand will even enter Formula E. We reached out to Audi for some clarification on the matter and a spokesperson stated that the rumors were "pure speculation at this point." Related Video: News Source: Auto Motor und Sport, AutocarImage Credit: Audi Motorsports Rumormill Audi Porsche Volkswagen Diesel Vehicles Hybrid Racing Vehicles vw diesel scandal rumor world endurance championship wec porsche 919 hybrid

Porsche testing four-cylinder Boxster at the N?rburgring

Porsche recently introduced a four-cylinder version of the new Macan for markets outside of North America, carrying Zuffenhausen's first four-pot since the 968 ended its production run the better part of two decades ago. But you can bet the compact crossover won't be the only Porsche to get the four banger before all's said and done. These spy shots, we're told, are evidence of just that.
Spotted undergoing testing at the Nürburgring (where else), this modified Boxster, our spy photographers tell us, sounds more like a four-cylinder engine than the flat six that's powered (in displacements ranging from 2.5 liters to 3.4) every version of the little roadster since its introduction in 1996, the year after the last four-cylinder Porsche ended production.
The test mule is also wearing modified wheel arches and aerodynamic aids under the bumpers, front and rear. Just what they're doing there we're not sure, but we'll probably find out sooner or later.