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2017 Porsche Panamera: Technical details of the world's fastest luxury sedan

In anticipation of our upcoming first drive of the new Porsche Panamera, here's an in-depth look at Stuttgart's new sedan. We already know what it looks like, but now we have details on the powertrain, chassis, and electronics. Let's jump right in. Engines, Transmission, Platform The big news is the all-new twin-turbo 4.0-liter V8 in the Panamera Turbo. It adopts a "hot vee" layout with the turbochargers in the engine's valley. This setup allows for a short run from the exhaust manifold for minimal lag, which is further reduced by the twin-scroll turbos. With 18.8 psi of peak boost, the new V8 pumps out 550 horsepower and 567 pound-feet of torque. As we mentioned, that's just 20 hp behind the outgoing Turbo S. And the Panamera Turbo is quick - good for 0 to 60 mph in 3.4 seconds with the Sport Chrono pack. Yes, launch control looks awesome. This is also the first Porsche engine to adopt cylinder deactivation - in four-cylinder mode the engine can run up to 3,500 rpm with as much as 123 horsepower. To shut down four cylinders at a time, the camshaft on each bank slides to engage a dummy lobe on cylinders two, three, five, and eight. When running in V4 mode, the valves stay closed on the shut-down cylinders. Another nod to emissions and efficiency is a catalytic converter mounted close up near the vee, right behind the turbos. All that heat requires airflow, so there's a dedicated duct from the radiator that routes fresh air over the turbos and catalytic converter. There's an all-new twin-turbo 2.9-liter V6 as well, made with the same 90-degree angle as the V8 because it's based on modular architecture. The V6 lacks cylinder deactivation but keeps the hot vee and adds two-stage variable lift on the intake valve. It is not lacking for power, with 440 hp and 405 lb-ft of torque. Both engines (and the European-market twin-turbo 4.0-liter V8 diesel) mate up to a new eight-speed dual-clutch automatic made by ZF. The new design is 5.6 inches shorter than the seven-speed it replaces and allows for an upcoming hybrid powertrain to be integrated without adding any extra length. The top three gears are overdrive ratios, with the top speed from both engines coming in sixth. Along with leading the development of the new V8, the Panamera is also the first car on the new MSB platform. That's Modularer Standardantriebs-Baukasten for you AP German students; a near-literal translation is modular standard drive.

2016 Porsche Cayman GT4 First Drive [w/video]

The 2016 Cayman GT4 is the sort of Porsche that purists fear would eclipse the rear-engined 911. The balance inherent in the mid-engined layout of the rigid Cayman chassis meant that it was only the right combination of horsepower and suspension away from whupping a comparable Carrera. Porsche has been very careful to keep this Cayman from doing that, despite the GT4's improvements. If you think this means the GT4 has been hobbled or hamstrung, it hasn't. Even a sopping wet track at Road Atlanta in Georgia couldn't keep us from crowning it the brash, arrogant upstart prince of the track-toy Porsches. The company got a lot right with this ultimate Cayman. To begin with, it absolutely looks the part it's supposed to play. Our tester wears searing Racing Yellow paint, that large wing looming over the rear lid is standard, and rolling stock comprises huge 20-inch wheels wrapped in Michelin Pilot Sport Cup 2 rubber. The front fascia is altered for both airflow to the radiators and downforce, standard fare for a hot track-ready version. What's unusual is that instead of complicating the look with tacked-on contrivances (ahem, like the GTS's grille insert-within-an-insert), it's simpler, subtler, and more purposeful. Between that front splitter and the wing, expect about 220 pounds of downforce at the GT4's 183 miles per hour top clip. Ergonomically, even with these fixed-back sport bucket seats, this car is nigh-perfect. Out back, things are more complicated but no less coherent. The lip spoiler that spans the trans-tailight area grows into a little ducktail, literally overshadowed by the larger rear wing. Rear diffusers are a requisite in this class, so one is present and functional. Optimized side intakes just aft of the doors cram more air into the engine, and gain a little embossed "GT4" script. Ergonomically, even with these fixed-back sport bucket seats, this car is nigh-perfect. The slightly smaller steering wheel, perfectly sized for the application, and the smooth, precise shift action make wrangling the major inputs like an extension of your own limbs. If you want to be cynical, go ahead and call the GT4 a parts-bin car. The 3.8-liter flat-six is cribbed from the 911 Carrera S, and the front suspension, steering system, and rear brakes from the 911 GT3. Want carbon-ceramic brakes? Then you'll get GT3 parts on both axles.

Porsche 911 GT3 RS looks wicked, this way comes

Those who didn't think Porsche went extreme enough with the latest 911 GT3 likely won't be disappointed when the more focused GT3 RS arrives. And as you can see from these latest spy shots, it looks like it's speeding right around the corner. Tipped to debut at the Geneva Motor Show this coming March, the new Porsche 911 GT3 RS is shaping up to be an enthusiast's dream - and with the prospect of a GT2 in doubt, could be the most hardcore Elfen in the range. Instead of the 3.8-liter flat-six in the current GT3, the new RS will pick up where the previous limited-edition GT3 RS 4.0 left off, with four naturally aspirated liters of unadulterated boxer power channeling a good 520 horses to the rear wheels. That will be a significant increase over the existing 475-hp GT3 and will match the 911 Turbo for output (if not the 560-hp Turbo S) and without any turbo lag to slow down the action, either. Whether it will keep the GT3's dual-clutch gearbox and four-wheel steering system, or ditch one or both for a more analog approach, remains to be seen, but we're holding out hope. Either way, the modifications to the bodywork ought to make the GT3 RS stand out even further and stay glued to the race track it will call home. Notice the deep front splitter scooping up snowflakes like a shovel, a massive rear wing (which may or may not be the final production version), the Turbo-spec rear end with air intakes ahead of the rear wheels, and a set of awesome-looking gills over the front wheels – all of which you can scope out in the gallery full of spy shots above.