The upcoming Mercedes-AMG CLA 45 platform signals a shift in high-performance electric vehicle engineering, blending 300kW regenerative braking capabilities with sophisticated motor-decoupling technology to achieve a range of up to 416 miles. By prioritizing aerodynamic efficiency through active spoilers and variable motor engagement, the model balances track-ready dynamics with long-distance usability.
Advanced Braking and Energy Management
Regenerative braking serves as the primary stopping force for the new CLA 45, capable of feeding up to 300kW back into the battery system. When mechanical intervention is required, the vehicle utilizes a high-performance setup featuring 390mm ventilated discs with six-piston calipers at the front, paired with 350mm ventilated discs and single-piston calipers at the rear.
Aerodynamics and Range Optimization
Range figures for the platform reach 416 miles for the saloon and 398 miles for the Shooting Brake, according to manufacturer claims. Much of this efficiency is attributed to a motor-decoupling system that disconnects the front electric motor during cruising or low-demand scenarios to eliminate friction losses. The system is designed to re-engage the front axle within one millisecond when additional traction is detected.
Aerodynamic management is further enhanced by an active rear spoiler. In Eco, Comfort, and Sport modes, the spoiler remains reclined until the vehicle reaches 90mph to minimize drag. For drivers seeking maximum downforce, the spoiler remains deployed at all times in Sport+ and Race modes, though the system allows for manual overrides via steering wheel controls.
Chassis Dynamics and Styling Tweaks
The vehicle’s stance has been widened by 24mm compared to standard CLA models, providing a broader footprint for improved handling. This dynamic overhaul is supported by adaptive dampers designed to manage the increased mass and performance potential of the drivetrain. Visually, the model is distinguished by a purposeful aesthetic, including an optional air duct that replaces the front light bar and the largest diffuser ever fitted to an AMG hot hatch.
Standard fitment includes 19-inch alloy wheels, with 20-inch options available for owners looking to further adjust the vehicle’s aesthetic and handling characteristics.
Frequently Asked Questions
How does the motor-decoupling system work?
The system automatically disconnects the front motor during standard driving conditions to reduce energy-sapping friction. It can re-engage the front axle in one millisecond if the car detects a need for extra traction.
Does the rear spoiler affect range?
Yes. The spoiler is designed to stay reclined below 90mph in efficient drive modes to reduce drag.
What is the maximum range of the new CLA 45?
The saloon is rated for up to 416 miles between charges, while the Shooting Brake variant achieves approximately 398 miles.
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