The stylistic design of the car was the responsibility of the Barcelona-based design studio Cero Design, giving it an aesthetic combining avant-garde, futuristic stylistic solutions with retro aesthetics referred directly to the Hispano-Suiza H6B Dubonnet Xenia. It was clearly shown, among others, by covered wheel arches above the rear wheels, as well as a pointed and pointed rear decorated with embossing and logos referring to historical Hispano-Suiza markings. The Carmen is named after Carmen Mateu, the granddaughter of one of the co-founders Hispano-Suiza Damián Mateu. This attempted to restore Hispano-Suiza as an automotive company, and the founders of Hispano-Suiza Cars paid tribute to her.
Hispano-Suiza showed off a special, limited version of its electric hypercar, the Carmen Boulogne at The Quail, A Motorsporst Gathering in August 2023. The car underwent extensive visual modifications, losing the characteristic rear wheel cover, and gaining an unpainted, black carbon fiber body enriched with copper inserts. The car also gained a more powerful drive system, in which two more electric motors were added to the standard two electric motors, thus achieving a total power of 1114 hp and 1600 Nm of maximum torque. The car reaches 100 km/h (62 mph) in 2.7 seconds, and the top speed is limited to 290 km/h (180 mph). The company planned to construct five copies, with deliveries scheduled for 2022. The price of the vehicle is around 2 million dollars.
