Porsche doesn’t miss details. It obsesses over them. So when a company that can tell you the weight difference between two paint finishes accidentally duplicates a limited-edition number on one of the most collectible 911s ever made, it’s less a scandal than a reminder: even perfection is assembled by humans.

To celebrate the 60th anniversary of the 911, Porsche built the 911 S/T—arguably the purest modern 911 this side of a motorsports paddock. Production was capped at 1,963 units, a nod to the year the original 911 debuted. Each car carries its individual build number on a badge mounted on the passenger-side dash. Or at least, it’s supposed to.

Somewhere between Zuffenhausen and the far corners of the globe, number 1724 was born twice.

One 911 S/T with that number went to Pedro Solís Klussmann, president of Porsche Club Guatemala. The other landed with Suzan Taher, who pilots her S/T on the opposite side of the planet. Same car. Same badge. Same number. Not exactly the sort of rarity Porsche intended.

The mistake stemmed from the most old-school part of the Sonderwunsch process: manual ordering. According to Karl-Heinz Volz, Director of Porsche Sonderwunsch, that human involvement is both the program’s greatest strength—and its occasional vulnerability. “Mistakes can happen,” Volz said, “The important thing is how you deal with them.” Credit Porsche for not hiding behind bureaucracy.

The irony? Klussmann had chosen 1724 with care. The 17th ties together birthdays shared by his mother, grandmother, and himself; the 24 marks his father’s birthday. Taher’s car, meanwhile, was meant to wear 1742, a number with no emotional backstory at all. Fate, it seems, had a sense of humor.

Porsche’s solution was peak Stuttgart. The company flew both owners to Zuffenhausen for a private, ceremonial mea culpa. There, they received corrected plaques, a framed photograph of their two cars together, and presentation boxes containing samples of their respective interior and exterior materials. The incorrect badge—the physical proof of the mix-up—was formally handed over to the Porsche archive, catalogued as part of company history while the owners looked on. Somewhere, a future brand historian is already smiling.

Beyond their brief numerical overlap, the two 911 S/Ts couldn’t be more different—and that’s the point.

Klussmann’s car wears the Heritage Design package, finished in Shore Blue Metallic, a color that feels lifted from Porsche’s greatest hits album. Inside, Classic Cognac fabric seat centers with black pinstripes deliver a tasteful wink to Porsche’s past, while a carbon-fiber roll cage reminds you this is no museum piece—it’s meant to be driven.

Taher’s S/T goes in the opposite direction, drenched in Paint to Sample Plus Rose Red. If the color feels familiar, it should. Known as “Fraise” in the 1970s, it adorned legends like the Carrera RS 2.7 and the IROC-spec 911 Carrera RSR 3.0. The shade was so compelling in this modern execution that Porsche will officially add it to the Paint to Sample catalog for the 2026 model year. Inside, Guards Red leather covers much of the cabin, turning the S/T into something that’s equal parts time capsule and contemporary statement.

And underneath all that personalization is the real reason the 911 S/T exists.

Developed in Weissach with a singular mission, the S/T is a love letter to lightness and involvement. Power comes from a naturally aspirated 4.0-liter flat-six producing 525 horsepower, paired exclusively with a close-ratio manual transmission. No turbos. No PDK. No distractions. Weight savings are obsessive, the chassis tuned for agility rather than lap-time bragging rights.

The name itself reaches back to Porsche history. In 1969, the 911 S spawned a competition-focused variant internally known as the 911 ST. The modern S/T carries that same philosophy forward: less mass, more feel, and a direct connection between driver and machine that’s increasingly rare in today’s performance-car landscape.

In the end, the duplicated number didn’t cheapen the 911 S/T. If anything, it added another layer to its story. These cars aren’t just collections of carbon fiber and carefully calibrated steering feel—they’re artifacts of a company that still does things by hand, still invites customers into its history, and still believes that owning a Porsche should feel personal.

Even when the numbers don’t quite add up the first time.

Source: Porsche