Click above for high-res gallery of the 2009 Porsche 911

Stopping an engine when it's not necessary for the operation of the car seems like a common sense move when fuel efficiency and emissions are the main concern. When performance is the biggest priority, though, the added weight and complexity of a stop-start system might not be worth it, at least not for drivers interested in the Porsche 911. Instead, Porschephiles would prefer that their sports cars remain as pure as possible, which means a powerful but conventional flat-six engine at the rear of the vehicle. That said, Porsche does intend to a good number of PDK dual-clutch transmissions as opposed to the traditional three-pedal setup, which seems contrary to the mission of a pure drivers car. Porsche also looks to improve overall efficiency by reducing the weight of its Boxster and 911.

On the other hand, stop-start technology seems like a no-brainer for less-sporty vehicles like the Cayenne and the upcoming Panamera, which are also likely to be given a full hybrid drivetrain as an option. Diesels, long the bane of the Porsche aficionado, are also in the works for upcoming Porsche models.

[Source: CAR via Autoblog]

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