True craftsmanship often reveals itself in the most minor details. When two examples of the 911 S/T inadvertently left the factory carrying the same limited-edition number, Porsche chose to address the error with care. What began as a simple numerical oversight has since become a memorable footnote in the story of Sonderwunsch—and, in turn, part of Porsche’s own history.
Created to mark the 60th anniversary of the iconic 911, the 911 S/T was produced in a strictly limited run of 1,963 cars. As the final customer deliveries are now taking place, each example bears its individual production number on the 911 badge integrated into the passenger-side dashboard. Yet one number—1724—appeared twice: once on a 911 S/T delivered to Pedro Solís Klussmann in Guatemala, and again on another example handed over to Suzan Taher, who enjoys her car on the opposite side of the world.
The faux pas occurred during the manual ordering process for the additional customized badge for customers’ cars. “There is a lot of specialized manual work involved in manufacturing, and human involvement means that mistakes can happen. The important thing is how you deal with them,” says Karl-Heinz Volz, Director of Sonderwunsch at Porsche. “It was very important to us to apologize to our customers appropriately and to correct the error.”
Background
To mark the milestone birthday of the iconic 911 sports car, the engineers in Weissach designed a particularly purist and driving-pleasure-oriented sports car: the 911 S/T. The exclusive anniversary model offers a unique combination of agility and driving dynamics. Its naturally aspirated 386 kW (525 PS) four-liter flat-six engine is combined with a close-ratio manual gearbox. Added to this is a systematically lightweight construction philosophy – down to the smallest detail – and a chassis setup optimized for agility and drivability. The name identifies the new 911 S/T as a descendant of a particularly sporting version of the first-generation 911. From 1969 onwards, Porsche offered the 911 S as a special competition version, and it was internally called the 911 ST.
A special day in Zuffenhausen
Pedro Solís Klussmann, President of the Porsche Club Guatemala, had carefully chosen the number 1724. His mother, his grandmother, and he himself all have their birthdays on the 17th of the month, while the 24 refers to the day of his father’s birthday. On the other hand, Suzan Taher’s Porsche was meant to be 1742, a number with no particular significance for her. After acknowledging the mix-up, Porsche invited both customers together for a special day in Zuffenhausen. To commemorate the double rarity of their 911 S/T, both received a picture of the two cars, with their correct limited-edition numbers, as well as an elegant box with samples of the respective interior and exterior colours. To officially document the error as part of the company’s history, the incorrectly installed plaque was handed over to Frank Jung, head of the company archive, and catalogued and stored while customers looked on.
Apart from their brief interlude sharing a number, the two 911 S/T have little in common. Instead, they are impressive examples of the extensive individualization options at Porsche. Pedro Solís Klussmann opted for the Heritage Design package from the Exclusive Manufaktur range, including the exclusive exterior color Shore Blue Metallic. Inside, the seat center panels, trimmed in Classic Cognac fabric with black pinstripes, create a historical reference. His car is also fitted with a carbon-fibre roll cage.
Suzan Taher’s car, on the other hand, is finished in the Paint to Sample Plus shade Rose Red. A color that first appeared under the name “Fraise” on Porsche factory models in the 1970s, most notably on the legendary Carrera RS 2.7 and the 911 Carrera RSR 3.0, which started at the International Race of Champions (IROC) in 1974. After being reviewed and implemented for this special customer vehicle, the color will also be included in the regular Paint to Sample program starting with the new 2026 model year. The Sonderwunsch specialists have extensively individualized the 911 S/T interior, and many surfaces are trimmed in Guards Red leather.
Above contents © 2025 Dr. Ing. h.c. F. Porsche AG reviewed and edited by Rex McAfee , @rexmcafee
