The sports car achieved the feat with the stock 3.0-liter flat-six with 443 horsepower.
Porsche is on a quest to save combustion engine cars amid the shift to electrification by championing synthetic fuel, otherwise known as eFuel. This latest stint with the eFuel saw the sports coupe conquering the peak of the west ridge of the Ojos del Salado - the world's highest volcano.
The German automaker brought two 911s (named Doris and Edith) for the altitude world record attempt, with three-time Le Mans champion Romain Dumas piloting the record-setting car. This project marked a return for the team after climbing the volcano in 2022.
Like last time's attempt, the vehicles - based on the current 911 Carrera 4S with the stock 443-horsepower 3.0-liter flat-six - used portal axles to increase ground clearance to 13.7 inches and improve throttle inputs at low speeds. With an all-wheel-drive (AWD) system and a Warp connector, the team combated some snow along the way.
The lead car featured a special steer-by-wire system dubbed Space Drive, developed by the Schaeffler Group, providing Dumas with precise and detailed feedback maneuvering the 911. Meanwhile, the interior is equipped with carbon fiber seats and five-point harnesses.
The project had two doctors who monitored the team's health conditions during the high-altitude attempt. An international team with members from the US, Chile, France, Germany, Canada, and Switzerland also supported Dumas.
"I'll never forget this experience. It was an extraordinary feeling to drive where no car has gone before," said Dumas. "A proud moment for the whole team - and we're grateful for the support and belief of all of our partners, each of whom made this possible."
The record-setting run proves not only the performance capabilities of the 911 but also the competence of eFuel. The eco-friendly product is being produced in Chile, with Porsche looking to construct the world's largest eFuel plant in Texas starting next year. Mainstream adoption may still be a long way off, but Porsche is helping speed up the process. Collecting records along the way is a bonus that reminds us EVs are not all the future holds.