The Starting Line is proud to host this 718 Cayman GT4, which may very well be the only new, unregistered example of its kind for sale in the United States. Over the standard 718, this car brings a naturally aspirated 4.0 flat six, bigger brakes, massive cooling ducts up front, and functional aero trim. These upgrades work together to bring supercar acceleration and handling to the mini Porsche platform.
The most obvious feature of this GT4 package is, of course, the six cylinder boxer tucked behind the driver's seat, replacing the 718's turbocharged four cylinder units. This engine was donated from the 992-generation Carrera and punched up to an even four liters, now making 414 horsepower and 310 pound-feet of torque. The plant is mounted midship and mated to a six-speed manual transaxle, and can launch the Cayman's lightweight 3,000-pound chassis to sixty miles per hour in just over four seconds. Similarly oversized radiators are located right on the car's nose to suck in cool air and keep the Porsche happy on the street or track.
Suspension and brake components have also been donated from the race-bred 911 GT3, ensuring this 718 can wrangle in that extra power. Functional front and rear spoilers were also designed for this model, and a new rear diffuser creates a negative pressure pocket under the car, effectively suctioning it to the ground. Together, these parts provide up to 268 pounds of downforce while maintaining a .34 drag coefficient.
This year, Car and Driver ran the GT4 around Virginia International Raceway, The Starting Line's home track, and posted a fastest lap of two minutes and 53.8 seconds. This time ranks it among supercars like the current Acura NSX, the Ferrari 458 Italia, Dodge Viper, and the 991 Porsche GT3.
Options listed on this particular Cayman include color-matched GT Silver seatbelts, comfort sport seats, a Bose audio system, and LED projector headlights. These lights add extra visual awareness by rotating with the steering system and following the curves along the road.
Soon to be able available for auction, this Porsche sits at middle-triple digit mileage, ready to be registered as a new car. Cayman GT4s and Boxster Spyders are currently in short supply because of a recall issue on the four-liter's piston rods. The Starting Line has diligently kept up with the car's service bulletins, and our Cayman is currently unaffected by the recall.
For a closer look at the GT4 watch this video overview with The Starting Line's Paul Ragsdale.