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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.

Porsche bringing Macan S Diesel to US instead of 4-cylinder [w/poll]

When Porsche unveiled the new Macan at the LA Auto Show, it announced two powerplants for the US market, both of them twin-turbo V6s: the Macan S equipped with 340 horsepower from its 3.0-liter engine, and the Macan Turbo with 400 horses from 3.6 liters. But those aren't the only engines Porsche will offer in its new compact crossover. Porsche is also offering the Macan S Diesel overseas with 258 hp, and reports have since indicated that a pair of four-cylinder models on their way: a 2.0-liter turbo four with 280 hp and four-pot turbodiesel of the same capacity with an as-yet undisclosed output.
Now Car and Driver is reporting that while those four-cylinder engines won't be making the transatlantic voyage to our shores, Porsche will offer the aforementioned Macan S Diesel in North America beginning in early 2015, nearly a year after the gas V6 versions arrive.
The 3.0-liter turbodiesel V6 is based on the same engine found in the Cayenne Diesel and the Audi Q5 TDI on which the Macan is based. Of course, its 248 hp is substantially less than the 340 ponies in the Macan S, but its 413 pound-feet of torque outshines not only the 339 lb-ft in the Macan S but also the 406 lb-ft in the Macan Turbo. Acceleration times, however, suggest the Macan S Diesel is still slower, with a 6.3-second run to 62 mph than neither the Macan S (5.4 sec) or Macan Turbo (4.8). The good news is that the Macan S Diesel is tipped to undercut the price of both, dropping the oil-burning crossover's MSRP below that of the $49,900 starting price for the Macan S and the $49,600 for the base Cayenne. If that C/D prediction comes to pass, that will make it the Macan S Diesel most affordable Porsche sold.

Are you the next Porsche 911 GT3 RS or GT2?

Porsche typically keeps to a suitably fast schedule when it comes to rolling out increasingly hard-core performance versions of the 911. After the 997 Carrera debuted in 2004, the GT3 version followed in 2006, and by the end of the 2007, Porsche had rolled out both the GT3 RS and GT2 versions. Then the facelifted 997.5 came out in 2008 and it was back to the start: the GT3 came in 2009, the GT3 RS and GT2 RS in 2010, and the GT3 RS 4.0 in 2011. But things have slowed down some with the latest 991 generation.
The new Carrera came in 2011 and the GT3 followed in 2012. By recent history's example, we should have at least two more hardcore models by now, but we don't. Maybe the engineers in Zuffenhausen have had their hands full fixing the spontaneous-combustion issues with the existing GT3, or maybe their attentions have been focused elsewhere altogether. But if these spy shots are anything to go by, it seems like they're back on the job.
Now we don't know if this prototype foreshadows a new GT3 RS or a GT2, but it sure looks more hard-core than the existing GT3 that many purists have derided as too soft, what with its automatic transmission and four-wheel steering.