Porsche’s new 718 Boxster and 718 Cayman are fitted exclusively with turbocharged 4-cylinder engines, but more potent versions of the cars are coming and these will stick to naturally-aspirated flat-6 engines.

That’s the word of Porsche engineer August Achleitner, who is in charge of the 718 and 911 sports car lines at the German automaker.

Achleitner revealed the information to Drive after being quizzed if more potent versions of the 718, such as the successors to the current Boxster Spyder and Cayman GT4, would feature the new turbocharged flat-6 engines in the latest 911 Carrera models.

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“6-cylinder turbocharged engine wouldn't fit,” he said. “Naturally-aspirated we have today, and most likely we will offer versions in the future, like GT4 for example.”

Achleitner went on to explain that Porsche has no intention of ditching naturally-aspirated flat-6 engines anytime soon, stating that they will be reserved for enthusiasts models like the GT4, GT3 and GT3 RS. The successors to the Boxster and Cayman GTS models will go the 4-cylinder turbo route, though, according to Achleitner.

The Porsche engineer also revealed that it was a no-brainer for the automaker to launch successors to the GTS, GT4 and Spyder since the cars have been extremely popular. But don’t expect the 718 line to quickly inflate with various models like we see in the 911 line. Achleitner said Porsche will only add more models if it makes sense to do so.