The Mercedes-AMG CLA 45 4MATIC+ is here to make a buzz

Mercedes-AMG has unveiled the CLA 45 4MATIC+, a high-performance electric vehicle that marks a significant step forward in the brand’s electrification strategy. The model features three axial-flow motors capable of delivering up to 500 kW of power, making it one of the most powerful all-electric vehicles currently available on the market. This new offering highlights the ongoing shift toward electrified propulsion systems, as internal combustion engines continue to be phased out in favor of battery-powered alternatives. The CLA 45 4MATIC+ can reach speeds of up to 270 km/h, with an optional feature allowing drivers to push this limit further by an additional 20 km/h. Acceleration performance is impressive, achieving 0–100 km/h in just three seconds. For added prestige, Mercedes has introduced a special measurement method known as “1-Foot-Rollout,” which calculates the sprint time without considering the first 30.48 cm of movement. According to this metric, the car can complete the 0–100 km/h acceleration in 2.7 seconds. The vehicle's powertrain consists of three axial-flow motors. Unlike conventional electric motors, these motors have their electromagnetic flux aligned parallel to the motor axis. The stator is enclosed between two rotors on either side, forming a structure referred to as an H-arrangement. This design allows for optimal transfer of magnetic flux from the stator’s magnetic field to the rotors, enhancing efficiency and performance. One of the three motors is located at the front axle, providing 225 kW of power. However, the two motors at the rear axle can deliver the full 500 kW independently. Despite this configuration, the front motor does not contribute to increasing the overall system power beyond its current level. Mercedes did not disclose the reason behind this limitation, but it is speculated that the power supplier may have imposed certain restrictions. The vehicle’s continuous power output is rated at 450 kW, indicating the extensive efforts made by engineers to manage thermal conditions effectively. The silicon carbide (SiC) inverter used in the car is water-cooled, ensuring efficient heat dissipation during high-power operations. The distribution of power among three motors—front and two at the rear—provides Mercedes with considerable flexibility in how torque is applied. Each motor can be controlled independently, enabling diverse driving dynamics depending on the selected mode. In everyday driving scenarios, the CLA 45 4MATIC+ offers a balanced and manageable experience, even when operating in an eco-friendly mode. At the other end of the spectrum, there is a dedicated racing mode designed specifically for track use. For enthusiasts who still miss the characteristics of traditional internal combustion engines, the AMGFORCE S+ feature provides simulated gear shifts and artificial four-cylinder engine sounds through the speakers. Additional elements such as seat vibrations and visual displays of gears and RPM enhance the illusion of driving a conventional sports car. These features aim to fulfill potential desires before they become noticeable gaps in the driving experience. Attention has also been given to acoustic enhancements within the vehicle. Subtle bass tones accompany the approach and closing of doors, while a deep rumble is heard when plugging in the charging cable. During the charging process, a low hum is emitted. Further suggestions include a distinctive, sonorous glugging sound during charging or a longing, raspy wheeze when the battery level drops below five percent. It is hoped that there will be an option where none of these sounds are audible, although optimism remains strong regarding this possibility. Despite featuring a larger battery compared to other models in the CLA lineup, the CLA 45 4MATIC+ reportedly offers less range than its counterparts. This trade-off underscores the balance required between performance capabilities and practicality in terms of energy consumption and range. As with other CLA variants, the specifics surrounding the charging process remain consistent, emphasizing reliability and ease of use in daily applications.