The new Porsche 718 Cayman GT4 features comprehensively improved aerodynamics, producing up to 50% more downforce without adversely affecting drag. The aerodynamics of both the GT4 and its sister, the 718 Spyder, benefit enormously from the newly designed single-chamber arch rear silencer which creates space in the rear section for a functional diffuser. This accounts for a good 30% of the downforce at the rear axle.

The GT4’s fixed rear wing is also marked by greater efficiency. It produces around 20% more downforce than its predecessor, good for an additional 26 lbs. of downforce at 124 mi./h. The nose, with up-to-date GT front aero, maintains the aerodynamic balance with a large lip spoiler and air curtains that help calm the air flow along the front wheels.

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