With 900 horsepower and a drag reduction system, the P39 transforms the 911 Turbo S into a 911 Turbo RS. Check it out here!

the GT-R NISMO gets the same body and suspension modifications as the Track Edition but adds a NISMO-specific aero kit, a different carbon fiber rear spoiler, and an Alcantara-trimmed steering wheel.

A combination of steel, aluminum, and carbon fiber provides a rigid, aerodynamic, and relatively lightweight body for the GT-R. Though the GT-R's performance rivals that of some exotics ...