Confirming persistent rumors, a Porsche executive has outlined a turbocharged future for the 911 lineup.Development boss Wolfgang Hatz has denied speculation that the upcoming GT3 RS will be the first turbocharged GT3 911. To the contrary, the model will be the only naturally aspirated 911 in the future lineup.

The executive has told Autocar the new GT3 RS will be “far more extreme” than its predecessor, likely lapping the Nurburgring in well under seven minutes and 20 seconds — at least five seconds faster than the current model.

The GT3 RS will introduce a new generation of flat six engine, which will be adapted and turbocharged for the rest of the 911 family.

A new turbocharged flat-four mill will make its debut in the entry-level Boxster early next year, ahead of the Cayman. At the other end of the spectrum, the Cayman GT4 is on track to arrive in late summer or early fall with close to 400 horsepower, while a faster Boxster is also in the works.

The executive also confirmed development of a new supercar that will slot between the 911 and the 918 Spyder, with an expected market arrival within the next five years.