Porsche 911 managed to reach higher than any other land vehicle in history, 6,734 meters above sea level
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Two modified Porsche 911 models nicknamed ‘Doris’ and ‘Edith’ participated in the attempt to break the record.
The cars were developed by RD Limited in collaboration with Porsche. The record itself was achieved by Dumas in the lighter and more agile ‘Edith’.
The special off-road conversion is based on the current 911 Carrera 4S. The original factory engine, a 3.0-liter six-cylinder boxer engine with 443 horsepower, was paired with a standard seven-speed manual transmission.
The car ran on Mobil 1 lubricants from the factory, allowing the powertrain to operate smoothly even in extremely cold climates.
The 911 itself proved to be an excellent base; a combination of sturdy and lightweight chassis construction, ample power, and the ability to handle extremely high altitudes well.
Both cars were equipped with carbon fiber seats and five-point safety belts.
Subsequently, portal axles were added to increase ground clearance (now 13.7 inches / 350 mm). The portal axles also reduced gear ratios, allowing precise and smooth accelerator inputs at low speeds.
Additionally, the cars were fitted with lightweight yet extremely resilient aramid fiber protection on the underside of the body to enable sliding over rocks.
Both cars operated entirely on eFuels HIF – created in Chile.
eFuels are produced from water and carbon dioxide using renewable energy, allowing for nearly CO₂-neutral utilization in combustion engines since the CO₂ captured during the eFuels production process is almost equal to the CO₂ emitted during vehicle usage.
Porsche invested in eFuels as part of their “double e-path” to power sports cars from the past, present, and future: Electromobility and eFuels.
The first integrated pilot plant for synthetic fuel production, “Haru Oni” in Punta Arenas, Chile, began production at the end of 2022.
Photos and video: Porsche
