The Cayman Interseries is a North American auto racing series that is a modern-day showcase of Porsche excellence as well as a rolling tribute to the heritage and history of some of the most famous Porsche racing cars of all time. Created, owned and operated by Napleton Porsche of Westmont in Chicago, the Cayman Interseries is open only to 2009 through 2011 Porsche Cayman S models that are raced in near-stock configuration by a competitive group of emerging and sportsman drivers that typically own the cars they race. The heritage connection comes in the form of each Cayman's livery that has a direct and visible link to a legendary Porsche race car from the past.
Only in the Cayman Interseries can you see modern interpretations of such famous Porsche race cars as the Gulf/Wyer, Martini and Salzburg Porsche 917s, the Holbert Lowenbrau and Miller High Life Porsche 962s, the Jagermeister/Kremer and Dick Barbour Racing Porsche 935s, the Akin/Coca-Cola Porsche 935 and Porsche 962 and so many more.
Each Cayman's throw-back color scheme is also matched up with a corresponding Cayman chassis number, which means the rich history of some of the most memorable Porsche race cars to ever hit the track will symbolically continue with an all-new chapter in the Cayman Interseries. Napleton Porsche is the exclusive builder and supplier for the Porsche Cayman S race cars used in the Interseries and also manages the assignment of the classic liveries that are familiar to Porsche aficionados and racing fans alike.
Speaking of fans, some of the biggest of the Cayman Interseries are the competitors themselves. The series is relatively low on expenses and high on thrills and excitement as the Porsche Cayman S is fast, fun and easy to drive. All Caymans race in near stock configuration but the standard six-cylinder, 320 horsepower engine and six-speed gearbox combination easily allows for top speeds approaching 175 mph. The Napleton Porsche organizers keep tight control on permitted modifications which keeps the costs down and the racing close.
After running an introductory schedule of proving races in 2009, the first official Cayman Interseries racing season was conducted in 2010. Lee Davis captured the inaugural Cayman Interseries Endurance Championship in his No. 33 Cayman S that showcases the familiar red and black colors of the famous Advan Porsche 962s and Luna C Clothing. Jim Bacus won the first Cayman Interseries Sprint Championship in his familiar No. 3 Cayman S model after the purple and green "Hippy" Martini Porsche 917LH.
The Cayman Interseries has been sanctioned by HSR (Historic Sportscar Racing) since its inception and races are run primarily on HSR and SVRA (Sportscar Vintage Racing Association) event weekends on famous road courses such as Sebring International Raceway, Road Atlanta, Daytona International Speedway, Watkins Glen International, Mid-Ohio Sports Car Course and other top North American venues.
Races range in length from sprints less than 10 laps up to endurance events several hours in length. Co-drivers are permitted in endurance events. Each event weekend typically features a pair of sprints and one enduro, in addition to full practice and qualifying sessions. Most enduro events see the Cayman Interseries compete as a class while racing with several other divisions, but the majority of the sprint races are usually Cayman-only contests. The Cayman competitors run in SVRA's Group 12 category while HSR has them in the 5C division.