First Look: 2011 Porsche 918 Spyder Hybrid Concept

“In terms of performance, XG10 will even eclipse the Carrera GT,” promises a beaming Dürheimer. “In terms of fuel consumption, it beats every microcar. It really does combine the best of both worlds. Thanks to the modularity of the engineering concept, hybridization can quickly filter down to the 911 and the Boxster, if required. Better still, all the R&D work was done in-house—and that includes the performance electronics and the electric motors. There was not a single systems supplier involved in the gestation process. As a result, we own all the intellectual property rights.”

The team of fifty specialists was led by Gernot Döllner, a seasoned and multitalented vehicle engineer. We asked him to name the three most critical crossroads of the concept-defining process. “XG10 started off as a conventional hybrid but then switched to the more practical and more advanced plug-in concept. The number of electric motors and where to position them was also an issue. In the end, we decided to integrate the rear motor in the housing of the seven-speed dual-clutch PDK transmission. We are still experimenting with the packaging of the cooling system. The best solution may be a nose-mounted, low-temperature circuit complemented by a pair of mid-mounted, high-temperature radiators. The body style is not yet cast in stone. Although the show car is a Spyder, generating a coupe version would be simple.”

The design of the low-noise, low-emissions crowd-stopper is the work of Hakan Saracoglu, who works for department chief Michael Mauer. Inspired by such legendary Porsche racing cars as the 908 Spyder and the 917 Le Mans coupe, as well as by the current ALMS RS Spyder, the former Mercedes-Benz and Saab designer masterminded the creation of an emphatically modern sports car with a few familiar touches.

“In a way, the 918 is two cars in one,” explains the soft-spoken design director. “Its character can change from mild to wild and vice versa—mild as in wafting along in eco mode, wild as in switching the drive program selector to sport or race. In mild, the car benefits from the relatively low weight and strong aerodynamic performance. In wild, it improves downforce and stability by extending the adjustable wing, and it raises the two ram-air intake scoops to further enhance thermodynamic efficiency. Design-wise, it was our mission to visualize a brand-new, unique, and revolutionary vehicle concept. Big wheels were a must, the stance had to be positively ground-hugging, and an unmistakable front end was imperative, as was a pacesetting mix of classic curvatures and contemporary creases. There is no doubt that the XG10 marks an important evolution of our design language, certain elements of which are bound to appear on future production models.”

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