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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 Cayman GT4 spotted at the N?rburgring

It was just the other day that we first caught wind of Porsche's plans to build a GT4 version of the Cayman, and now we're already looking at spy shots of the vehicle in question undergoing testing at - where else? - the Nürburgring.
With more aggressive front-end aero, a GT3-style air vent ahead of the front hood, a large wing at the back, and spindly alloys packed with over-sized brakes at each corner, this Cayman is clearly more extreme than even the range-topping GTS. The rear diffuser and central exhaust tips look about the same as those you'd find at the back of the Cayman GTS, though.
What we can't see, of course, is what Porsche has slotted in under the rear glass, how it's upgraded the interior and how much weight it's stripped out of the thing to get it down to fighting weight, but you can bet it'll come with a substantial power bump and a stripped-out interior with racing buckets and little else to open the gap between it and the GTS... and close the gap to the 911 GT3 which it will join as the baby brother in Porsche's performance-focused lineup. Click above to view the double-batch of spy shots.

eGarage video features Helmuth Bott's personal Porsche 959 prototype

"We thought we were going to build a super-911," said Peter Schutz, former CEO of Porsche AG of the development of the Porsche 959. That was before it started getting expensive. At that point, Helmuth Bott, Porsche R&D director got frightened. Costs ballooned because of the all-wheel drive, sequential turbocharging and other technology Porsche had never even thought about when it set out to build a 911 to compete in Group B. Schutz continued, "The amount of resources we were committing got totally out of hand." Instead of pulling the plug, Bott doubled down and drew on the strength of his brilliant team to build a car whose impact is still echoing aross the industry.
"It's probably one of our most prized possessions" says Don Leatherwood, Director of the Brumos collection where Dr. Bott's personal prototype resides, and where Frazer Spowart went to see the car and create a video for eGarage. Check out the sights and sounds of the 959 before it was the 959, and get personal takes on the car from Hurley Haywood, Peter Schutz and Don Leatherwood. Keep reading to see the video.