Building cars is hard, and even Porsche makes mistakes. Two limited-edition 911 S/Ts ended up with dash plaques showing the exact same serial number, 1,724.
The error might have stayed hidden if one owner hadn’t tried ordering an additional customised badge for his car.
The 911 S/T celebrates both the 60th anniversary of the 911 and Porsche’s 75th year as an automaker.
Only 1,963 examples exist, matching 1963 when the original 911 debuted.

The ultimate purist 911 combines GT3 RS power with lightweight construction, a six-speed manual transmission, and classic-inspired design touches.
Pedro Solís Klussmann, President of Porsche Club Guatemala, specifically requested car number 1,724. The digits held deep meaning.
He and his mother share birthdays on the 17th of the month, while his father was born on the 24th. His grandmother also celebrates on the 17th.
Meanwhile, Suzan Taher from across the globe ordered what should have been car 1,742.
A manual ordering process mix-up gave her the duplicate 1,724 badge instead. The number carried no sentimental value for her.
The two cars couldn’t be more different. Klussmann’s Shore Blue Metallic S/T features the Heritage Design Package, fabric seat centers, and a carbon fiber roll cage.
Taher’s ride wears Paint to Sample Rose Red, originally introduced in the 1970s as Fraise. Her matching interior gets trimmed entirely in Guards Red leather.

Porsche invited both owners to the Zuffenhausen headquarters for a special day.
They presented each with pictures of both cars and boxes containing samples of their respective interior and exterior colours.
The incorrect plaque was ceremonially archived to mark the mistake in company history.
Karl-Heinz Volz, Director of Sonderwunsch at Porsche, acknowledged that specialised manual work in manufacturing means human mistakes inevitably happen. The important thing, he noted, is how you deal with them.
Rather than quietly fix the error, Porsche embraced the human side of car building. The mistake inadvertently created two new rare 911s with a unique shared story.
Cataloguing and storing the incorrect badge ensures this small flub becomes part of Porsche’s documented legacy.
The 911 S/T packs a naturally aspirated 4.0-litre flat-six making 518 horsepower. Weight sits at 3,056 pounds. The company is currently delivering the last few units of the production run.
What started as a manufacturing error became an opportunity for Porsche to enrich owner stories and showcase Sonderwunsch’s bespoke artisan excellence.
Two highly customised cars brought together by accident now share a bond that makes each slightly more special than originally intended.