Beyond the lift-throttle oversteer, beyond the repair bills, and beyond the accusations of sexual inadequacy, most Porschephiles' longest-standing fear is that Zuffenhausen is going to screw up the 911. This is especially true when they know there are big changes coming. Well, this new 911, code-named 991 and set to debut in September, is larger and built to accommodate a hybrid powertrain. How's that for terrifying? Kinda makes watercooled engines seem like small- er cup holders, no? But if our first experience with the preproduction car is any indication, there's nothing to fear.

We have flown to South Africa to join August Achleitner, the man known as "Mr. 911," responsible for all 911-series cars, and 991 project leader Bernd Kahnan for the car's final chassis-tune shakedown. First question to Achleitner: "How will you keep the soul of the 911 intact?" He smiles and urges calm. "We sharpened the 911 by making it faster, more responsive, safer, and more environmentally friendly. But we didn't mess it up!"

That's certainly true of the bodywork, which is stretched and pulled but still unmistakably 911, even under the camouflage. The car's body is 2.2 inches longer than the outgoing 997 and sits on a 4.0-inch-longer wheelbase. This is to make real estate available for the coming-for-2016 hybrid version's electric motor and components. The front and rear overhangs are shorter, by 1.3 and 0.5 inch respectively, and the car's roofline is lower by 0.5 inch. Because our particular 911 S is outfitted with the sport suspension, it crouches an additional 0.7 inch closer to the pavement.

Dimensional changes to the greenhouse may seem equally small on paper, but they have the effect of making the whole car look sleeker. The windshield is more convex and its rake faster in the interest of aerodynamics -- the new 911's Cd is a claimed 0.29, identical to the 997's. Porsche moved the base of the A-pillars forward by 1.4 inches. And the center bottom of the glass punches out by a meaningful 3.2 inches so that, in combination with a full-length sunroof and more shoulder room, the cabin feels much airier than before. But the back seat is still only useful for the tiniest of children and dogs. Standing on 19- (regular 911) and 20-inch (911 S, optional for 911) wheels, the 991 looks ready to pounce.