Mercedes-Benz is putting the final touches on its next-generation CLA sedan, set to debut next year. The updated model will feature the latest advancements in Mercedes’ powertrain technology and software. Ahead of the official release, the company shared images of a camouflaged CLA undergoing testing at its track in southern Germany, with CEO Ola Källenius behind the wheel.
The new CLA will be the first Mercedes model to run on the company’s new MB.OS operating system, which is Linux-based and integrates QNX for safety-critical functions like the dashboard display. Källenius explained to Ars that while the system remains in control, it will still be compatible with third-party services. “We are the full architects of the stack, but it doesn’t make sense, either technologically or economically, for us to code every line ourselves,” he said.
Mercedes is also introducing its first fully in-house developed electric powertrain with the CLA. Until now, Mercedes has relied on partners like Bosch for its EV powertrains, but the CLA marks a shift to a self-designed system. Before finalizing the powertrain for the CLA, Mercedes tested it in the EQXX, a concept car capable of almost 750 miles on a single charge. During a 2022 test, the EQXX demonstrated remarkable efficiency, achieving 7.44 miles/kWh (8.35 kWh/100 km). When the same powertrain was tested in the less aerodynamic EQB, it showed a marked improvement, with 5 miles/kWh (12.5 kWh/100 km)—an 80% increase over the production EQB.
To showcase the performance of the CLA’s new powertrain, Mercedes took a prototype to the Nardo test track in southern Italy, where it covered an impressive 2,309 miles (3,716 km) in just 24 hours. This exceeded the previous 2019 record set by Porsche by 181 miles (291 km). The test involved driving on Nardo’s high-speed bowl, a 7.8-mile (12.5 km) track, with an average speed of 95 mph (153 km/h). The car made 40 recharging stops, totaling 6 hours and 40 minutes of stationary time.