A certain sports car manufacturer from Germany has a rather full trophy case. Porsche's plaudits include records everywhere from the Nürburgring to the deserts of Dakar, and it's all too proud to show off every chance it gets. However, unless you've got a photographic memory for obscure, yet awesome, 911s, you might not be too familiar with "Edith" and "Doris." The Porsche Museum wants to change that, giving the custom-built Carrera 4S off-roaders a little more time in the spotlight to commemorate their 2023 record for high-altitude driving. An Unusual But Significant Achievement The company's Stuttgart museum will present Edith and Doris in a special exhibition to memorialize their ascent three years ago up the Ojo de Salado volcano in Chile. The trip to 6,721 meters (22,051 feet) above sea level required lots of modifications and weight reduction. Both examples of the 911 Carrera 4S received cut-down bumpers for improved approach and departure angles, portal axles for a massive 13.7 inches of ground clearance, and Aramid fiber underbody protection that allowed the cars to slide and scrape over rocks without damaging sensitive powertrain or suspension components.PorscheThey also got carbon fiber bucket seats with five-point harnesses, and a variety of lightweighting efforts helped cut mass even further. According to Porsche, Doris was the first vehicle they built for the record, representing the program's starting point. Edith came a little later, and its more aggressive approach to weight reduction allowed it to be 794 pounds lighter than a stock 911 C4S – around 2,700 pounds in total. Edith also got a custom steer-by-wire system called Porsche Space Drive, which offered a couple benefits over traditional steering: There was no mechanical connection to break or snap in rough driving, and its precise calibration offered lead driver Romain Dumas even more feedback.Finally, on December 2, 2023, Dumas crested the West Ridge of Ojo de Salado, sitting nearly 4.2 miles above sea level. The record still stands to this day, which Porsche will commemorate at its museum this spring. The exhibit takes visitors through the step-by-step process of building the cars, selecting the route, and key milestones along the way, ascending to the top of the gallery where Edith and Doris are parked.Porsche Another Porsche Project Wins Big While the altitude record would be impressive in any vehicle, much less a customized 911 sports car, Porsche took the opportunity to raise awareness for another of its projects. Both Edith and Doris used eFuel synthetic gasoline for the big climb, proving that the carbon-neutral solution for internal-combustion cars could stand up to the most taxing situations. Manufactured in Chile at a joint-venture factory between Porsche and HIF Global, eFuel is produced by combining water with carbon captured from the air, then synthesized into a product that's chemically identical to gasoline produced from fossil fuels.2023 Porsche 911 Carrera 4S Off-Road Prototype Doris on Ojos del Salado Chile VolcanoPorsche has also used HIF eFuel to power some of its racing cars and classic collection, proving that synth gas can be a versatile solution for the future of high-performance cars. For now, we can bask in Edith and Doris' achievements in Stuttgart until June 26, when the temporary exhibition closes.Source: Porsche