Changes are minor, though it should pack an even bigger naturally-aspirated flat-six.
Porsche Cayman Gt4 Rs
The engine may come from the 500-horsepower Porsche 911 GT3 RS.
Porsche just introduced the Cayman GT4, with its 3.8-liter flat-six churning out 385 horsepower. But according to Evo, the German automaker is already looking at an even more hardcore GT4 RS.