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Porsche comes full-circle with another flat four-cylinder

Porsche Boxster

It’s official. The world’s automakers have all gone turbocharged four-cylinder crazy. Ford, BMW, Chevrolet, Volkswagen, the list goes on. Now Porsche has joined the lot with a rumored return to the flat four-cylinder.

Italian website 0 – 100 is reporting that Porsche has plans to introduce a turbocharged flat-four Cayman at next year’s Frankfurt Auto Show. Estimated to produce 350 horsepower and 369 pound-feet of torque, the new 2.5-liter flat four would be the highest-end engine option for the new Cayman.

Currently the new Cayman line runs from the standard Cayman with a 2.7-liter flat six-cylinder producing 275 horsepower and the Cayman S powered by a 3.5-liter flat six that produces 325 horsepower. This new one would sit atop the line and would presumably be called the Cayman Turbo.

Reports are saying that unlike the other Cayman engine options, the flat turbo four would only be paired to Porsche’s PDK dual-clutch transmission and would not be offered with the six-speed manual transmission.

If you’re curious whether the new Boxster would also receive the new high-end engine, the answer is most likely yes. The only concern with pepping up these already brilliant new mid-range Porsches with hot new engines is that they might cannibalize some of the 911 sales, which is where Porsche makes a great deal of its profits.

While Porsche has had other four-cylinders in the past, this new flat four would be the first of its kind since the brand’s inception. Alternatively to the turbo idea, we could possibly see the turbo being withheld from the flat four, making an even more entry-level model: the Cayman Four. But we seriously doubt that will happen.

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