2007 Porsche Cayman on 2040-cars

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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 unlocks secrets of its mid-engine 911

Porsche is beginning to realize that it's sitting on a goldmine of automotive history with its secret vault full of rare cars. Autoblog toured it a few months ago, and we were amazed at all of the curiosities hidden inside. Now, it's starting to let more folks in thanks to a new series of YouTube videos. The first covered the 965 prototype that shoved a water-cooled, Audi V8 into one of its cars. Next up, a mid-engine 911 that acted as the powertrain test mule for the Boxster.
The Porsche 911 is inextricably linked to its rear-engine layout. They go together like peanut butter and jelly. However, at the time Porsche was developing the Boxster, the company didn't want to lay all of its cards out of the table during testing. As opposed to using camouflage, it put a whole different car on top. The prototype looked just like any other 911 Targa of the day, but the biggest giveaway that something was amiss was the heavily tinted rear window. By obscuring it, inquisitive journalists couldn't peak at the new engine that replaced the backseat.
It might not look like anything too important on the outside, but this is a major piece of Porsche Boxster history underneath. Scroll down to watch the video about this fascinating prototype.

2015 Porsche Cayenne S Quick Spin

There are sporty SUVs, but until the Macan came along, the Porsche Cayenne was arguably the only pure definition of a 'sports SUV, a la sports car. The second-generation Cayenne is now five years old, but still looks fresh. It's handsome without obvious effort, especially with the optional 21-inch 911 Turbo wheels. The Cayenne S replaces the old, 400-horsepower, 4.8-liter V8 with the brand-new, Porsche-developed 3.6-liter twin-turbo V6. This engine is quickly proliferating through the range – it powers the current Panamera S and the Macan Turbo. That former 4.8-liter started life as a 4.5-liter with 350 horsepower way back in 2002, specifically developed for the Cayenne, and to the end it remained a potent engine. We tried the new forced-induction V6 with 420 hp earlier this year in the Panamera S, and other than a soggy exhaust note it maintained the character of the former V8 sport sedan, with lusty power and hasty delivery. So, how's it do in the Cayenne? Driving Notes The Cayenne S version of the TT V6 gets 420 hp and 406 pound-feet of torque. That means there's 37 more lb-ft than the previous V8, and 22 more lb-ft than in the new Panamera S. Yet the 607-pound difference in curb weight between the Panamera and Cayenne means the V6 has a heavier load to lift here. And it shows – the instant response is dulled. Stomping the right foot gets the eight-speed transmission rappelling through gears to provide a little kick, but real gumption doesn't come until the turbos kick in. We're maybe talking about a second of pause compared to the Panamera, but a noticeable second. Perhaps a small price to pay for slightly better fuel economy, if you really care about such in your 420-hp SUV. Part of why we notice that second is that the Cayenne S is so right-now everywhere else that any perceived hesitation gets extra attention. It offers a specific adjustability that many sports cars don't have, with one button adjusting the three-mode air suspension and a separate Sport button tweaking the steering, throttle, gear changes, and traction control. With Sport keeping all the horses at the ready and the optional Porsche Torque Vectoring holding things steady, you don't need to step up to the GTS trim to get immediate acceleration, crisp steering, flat cornering at very un-SUV-like speeds, and tremendous stopping power from a total of 20 brake pistons. That said, the exhaust note here could also use a shot of Bruce Banner's gamma rays.