Fortunately, the exterior is completely undisguised, so we don't have to infer what it will look like; this is it. The larger, lower front spoiler is the primary tip-off that this un-badged car is the Turbo S soft-top.
So what can we expect of the 2014 911 Turbo S Cabriolet mechanically? It should share an engine with the Turbo S coupe, meaning a 3.8-liter flat-six engine good for about 560 horsepower thanks to direct injection and twin-turbocharging.
With the Sport Chrono package, the Turbo S coupe can accelerate to 60 mph in 2.9 seconds and hit 198 mph top speed; the cabriolet should come very close to these marks, though the additional weight and drag of the soft top may result in small tweaks to the final figures.
All-wheel drive is the standard, with shifts to be handled with a PDK transmission only, following the model of the Turbo coupe and 2014 911 GT3.
Other technological advances that should feature on the Cabriolet (they're already announced for the coupe) include: rear-wheel steering to enhance both low-speed and high-speed handling; all-LED headlights; center-lock wheels; a three-stage front and rear adjustable aerodynamics system; and a host of luxury features in the interior like 18-way adjustable seats and a choice of Bose or Burmester sound systems.
When the 911 Turbo S Cabriolet arrives on the market, it should start from about $197,000. For more information, including an early look at the 2015 911 GT2, visit our Porsche 911 hub page.