The top of Porsche’s 718 lineup, the new Cayman GT4 (alongside the Boxster Spyder) is expected to pack the 4.0-liter boxer six from the 911 GT3, albeit likely de-tuned for the smaller package, producing just over 400 horsepower. The previous generation Cayman GT4 had a 911 Carrera S-sourced 3.8-liter flat-six with 385 PS. Porsche executives have hinted that the new model will be available with both manual and dual-clutch automatic transmission options.


It won’t weight more than the GTS, so expect the GT4 to keep under 1,450kg or 3,200 pounds, which combined with the 4-liter flat six, it should easily beat the previous model’s 0-100 km/h time of 4.4 seconds and 295 km/h top speed.

Compared to existing versions – including the Cayman GTS – it’ll also have bigger wheels, a stiffer suspension, and a more aggressive aero package that will add a bigger rear spoiler. That wing looks different than the unit we’ve seen attached to prototypes up to this point. It appears to bear a similar curve and even the same vertical brackets holding it in place, but this one has bigger end-plates. Much bigger, the better to channel airflow and keep it stable at speed.
             

Big as it is, that in and of itself won’t make the GT4 the unadulterated performance machine that it most definitely will be. But it speaks to the overall package that promises to take the Cayman far beyond the “baby” status to which it was once consigned, and make it every bit the driving tool that Porsche’s other GT models have proven themselves to be just in a smaller package.