Mercedes-Benz Concept CLA Class, introduced with the slogan "Defining Class" at the IAA Mobility 5, held between 10-2023 September in Munich, Germany, reveals the brand's approach to the new vehicle family for which it is preparing. As we enter a new electric and digital era, the Concept CLA Class is in the company's long-term portfolio strategy, where the company has “set standards since 1886” with aesthetics and exceptional design, long-range efficiency, pioneering innovation, sustainable materials and the all-new operating system MB.OS. It reflects the vision of raising the standards of its class. Using the upcoming Mercedes-Benz Modular Architecture (MMA) platform, the exterior lines of the Concept CLA Class reflect iconic design and dynamic performance. The interior focuses on customer experience with superior comfort and convenience, apart from the electric and digital future.
The company's technology leadership is demonstrated by the superiority of its MMA platform. The platform targets a range of over 750 kilometers (WLTP). Mercedes-Benz Modular Architecture (MMA) is an electric-first platform designed for a family of four vehicles covering different body types. This platform will also play an important role in accelerating the Mercedes-Benz electric product range. Of course, all vehicles on the MMA platform are developed in accordance with Mercedes-Benz's "real life safety" philosophy.
In addition, the new operating system “MB.OS” forms the basis of a unique user interface and experience (UI/UX) through MBUX Superscreen, derived from VISION EQXX's innovative display with advanced real-time graphics. Concept CLA Class focuses on the use of sustainable materials. This ranges from CO2-reduced steel and aluminium, to sustainably produced leather upholstery and paper upholstery.
Ola Källenius, Chairman of the Board of Directors of the Mercedes-Benz Group, said that the Concept CLA Class is the pioneer of new and fully electric vehicles and the gateway to the Mercedes-Benz world and said: “With our completely newly developed special MMA platform, we will significantly increase our options in this segment. “All of these models are designed to fulfill one mission: to redefine everything customers can expect in this format,” he said.
MMA electric powertrain designed for electrical efficiency
As the first car developed with the all-new, electric Mercedes-Benz MMA platform, the Concept CLA Class showcases the series production model's next-generation electric powertrain technology. With an estimated range of over 750 kilometers (WLTP), it sets the standards in this technology class. While this means an energy consumption of approximately 12 kWh/100 km, the Concept CLA Class stands out with its high efficiency. The in-house developed powertrain in the VISION EQXX is based on an 800 V electrical architecture combined with a high energy density battery and an efficient electric powertrain. Although it is used as a sporty rear-wheel drive in the case of the Concept CLA Class, the modular structure also allows for all-wheel drive applications. The new generation powertrain system, used for the first time with the Concept CLA Class, can also be scaled to be used in different vehicle classes.
high voltage battery
The innovative battery system developed for the MMA platform is based on a modular architecture where customers can choose between two different cell chemistries. The upper version has an anode design containing silicon oxide for superior energy density. Meanwhile, the entry-level version leads the segment with its use of lithium-iron phosphate. The battery itself has a small volume. Also, for the first time, cell modules are fixed with adhesive instead of screws. Thus, not only a lighter structure is achieved, but also an extremely robust structure in terms of crash safety. In addition, 800 V technology provides high energy endurance with compactness and lower cooling requirements. The high-voltage version also enables 250 kW DC charging, thus providing a range of up to 15 kilometers with 400 minutes of charging.
Mercedes-Benz Electric Powertrain Unit (MB.EDU)
Light, powerful and compact: The new highly efficient MB.EDU, consisting of in-house developed engine, transfer case and power electronics, is based on a modular concept and sets new standards. The new powertrain system, designed to meet different performance demands in different model series, is the first of the family. The 175 kW continuous drive synchronous motor is paired with a two-ratio transfer case. High-performance power electronics combine engine and transfer case management in a single processor and include a silicon carbide inverter for superior efficiency. Thus, with its weight below 110 kg, MB.EDU provides ease of integration at an advanced level. In addition, the system ranks at the forefront in the industry by meticulously minimizing losses with its extremely high energy efficiency of up to 93 percent from battery to wheel during long-distance driving.
Sustainability developments in the MMA electric powertrain system
The permanent magnet synchronous motor in the Mercedes-Benz Electric Powertrain Unit (MB.EDU) has a significantly lower rate of rare earth elements than in previous generations, close to 0 percent. The new MMA electric powertrain system also takes an important step in net carbon neutral production of batteries. Not only cell production but also cathode production is net carbon neutral, reducing the carbon footprint of the cells by 40 percent. Emissions will be further reduced by using renewable energy in the production of raw materials.
Bidirectional charging
Concept CLA Class also offers a glimpse into the future of networking between electric vehicles and the energy grid. Software- and hardware-based bi-directional charging creates new potential for both users and energy suppliers. When connected to a compatible bi-directional DC charging station, the vehicle becomes an energy storage device that can store solar energy for later use, for example. Moreover, it also serves as a Vehicle-to-Home (V2H) or Vehicle-to-Grid (V2G) electricity source.
In the V2H example, it provides backup supply in case of power outage. In its V2G application, it helps stabilize voltage fluctuations in the electricity grid and includes the trading of environmentally friendly electricity under favorable market conditions. In all cases, the intelligent bi-directional charging system ensures that the vehicle has sufficient charge when it is intended to be used.
Design – a new perspective with iconic elements
Concept CLA Class symbolizes the beginning of a new era and the next step in the continuous evolution of the brand's unique design language based on sensory purity. The vehicle has a distinctive and dynamic appearance, including iconic design elements redesigned for the electric and digital age.
The striking use of light in its exterior design represents its aim to be the brightest star in the Mercedes-Benz constellation. It also represents the combination of enhanced customer experience, the transition to electric and digitalisation. The long wheelbase, short overhangs, thin glass areas and long body reflect the design approach of the new Mercedes-Benz vehicle family.
By using the iconic three-pointed star as an emotional lighting motif, Mercedes-Benz designers reaffirm this symbol as the most enduring sign of automotive progress. It starts from the front and continues along the side line with light strips on the front and rear wheel arches. The illuminated and moving star pattern on the large glass ceiling adds additional appeal to the exterior and a relaxing effect to the interior. In addition, Mercedes-Benz's special laurel crown is reinterpreted and creates striking details in the interior trim.
Exterior design in detail
The dynamic front of the Concept CLA Class stands out with its shark nose and unique seamless grille panel. The front fascia serves as a canvas for the illuminated animated star pattern as well as the iconic Mercedes-Benz star in its illuminated centre. The light bands surrounding the front and rear add three dimensions to the light composition and also stabilize the headlight clusters. The bands are made from an innovative material that has a stylish, mirrored chrome look, even when not illuminated. Different animated lighting scenarios day and night strengthen the sense of dynamism. They also offer an added dimension of personalization, such as welcome and send-off. The illuminated Mercedes-Benz star at the back also creates a unique visual feast.
The sporty body of the Concept CLA Class is emphasized by athletic shoulders extending from the front light strip to the powerful rear end. Chrome applications on glass areas add elegance and elegance to the overall dynamism. The coupe design lowers the visual center of gravity below eye level. Strong and wide wheel arches surround 21-inch wheels with a distinctive star pattern. The sharp GT line and proportions of the rear lengthen the silhouette and offer more headroom for rear seat passengers. In addition, the long wheelbase provides more legroom for rear seat passengers.
Interior design in detail
The blend of analog and digital brings a new definition to the segment. The spacious and airy interior of Concept CLA Class offers an aesthetic and modern atmosphere. Iconic elements create a simple yet powerful statement. The interior reflects a minimalist elegance inspired by technology. Innovative materials such as paper veneer and Napa leather treated with vegetable-based tanning agents contrast with glossy surfaces. While natural light from the large glass ceiling fills the interior, details are emphasized with hidden LED lighting.
user interface
Concept CLA Class sets new standards with its user interface. Featuring high-efficiency mini LED technology and the immersive 3D graphics used in the VISION EQXX, the MBUX Superscreen extends across the entire cockpit. Additionally, combining sharp high-resolution graphics and best-in-class digital features, the MBUX Superscreen becomes a dynamic and personalized feature of the interior design.
The one-piece aluminum body reflects a high-tech design. The iconic turbine-like virtual vents on the left and right of the screen are digitally visualized. The unique and eye-catching combination of analog and digital represents the next evolutionary step known as hyper-analog. The familiar iconic form is reinterpreted as the climate control interface, while the fixed inner ring displays the cabin temperature setting. The outer analog ring protrudes smoothly from the glass surface to act as a control and is rotated to make adjustments. Thus, a transition from digital to analog user experience occurs. Physical ventilation channels are hidden behind the screen and also act as a source of ambient lighting.
Technology transfer from VISION EQXX to Concept CLA Class
In realizing Mercedes-Benz's vision for the future, engineers took advantage of the Mercedes-Benz VISION EQXX, which continues to set the technology standard for vehicles in this class. These range from the LED MBUX Superscreen to the electric powertrain and thermal efficiency solutions to lightweight design, bionic optimization and the application of sustainable materials.
VISION EQXX technology program includes advanced technologies and solutions that will be transferred to mass production. The new generation electric powertrain system, consisting of an electric motor, transfer box and power electronics, is one of them. It contains new generation silicon carbides in power electronics. Additionally, the high-voltage battery uses the same solution for high energy density. A significant improvement over existing automotive heat pumps, the advanced heat pump carried over from the VISION EQXX program extracts heat not only from the powertrain but also from the external environment at sub-zero temperatures to warm the Concept CLA Class cabin. The heat pump contributes to the electric range by minimizing the use of additional heating in cold winter weather.
Mercedes-Benz's digital infrastructure MB.OS
The Mercedes-Benz vision of the future redefines the automobile and takes it beyond the role of a means of transportation, assistant or companion. It becomes an entertainment and gaming hub, a productivity zone, a private space, even part of a server and energy grid, an integral part of life. Mercedes-Benz is developing its own MB.OS operating system to achieve this vision, using the full potential of software-driven innovation. The proprietary chip-to-cloud architecture represents a completely new approach for the company and is intended to guide future vehicles. MB.OS makes software development faster and more adaptable by separating hardware and software.
MBUX Superscreen offers a new level of personalization with real-time graphics
MB.OS takes the Mercedes-Benz vehicle experience to the next level with software and artificial intelligence (AI). For example, it uses a unique UI/UX tailored not only to the vehicle but also to the customer's individual preferences. The advanced three screens of the MBUX Superscreen in the Concept CLA Class combine with ambient light and sound to deliver an immersive luxury experience never seen before in this class. Various themes for all three screens offer advanced personalization, while the virtual assistant supports users with information and suggestions.
MBUX Superscreen comes to life with advanced real-time graphics powered by the Unity Game Engine, just like VISION EQXX. The instrument display adapts to user needs, including driver support. The smart system creates an intuitive dialogue by using shapes and light in communication, as well as data. This allows the driver to have an overview of all information. The user has everything he needs at any time, from the dynamic virtual cockpit that optimizes driving style for maximum range to 3D navigation with information on points of interest.
Users can also create their own personal spaces with immersive worlds. With its clear and vivid image, MBUX Superscreen takes the in-car infotainment experience to a completely different dimension. Entertainment is provided by the integration of quality third-party applications. Additionally, the MBUX Collectibles feature offers the opportunity to create a private art gallery by selecting from a collection curated by Mercedes-Benz. MB.OS also allows passengers to have a better time while driving with third-party video streaming options. Multiple layers of safety, including eye-tracking technology, prevent driver distraction.
Enhanced SAE Level 2 performance with LiDAR in Concept CLA Class
As with all its vehicles, Mercedes-Benz approaches the Concept CLA Class with the vision of accident-free driving. Driving support and safety systems developed for the MMA platform make this possible. For example, it can drive partially autonomously (SAE Level 2) in almost all road conditions, assists the driver when changing lanes on different roads, automatically maneuvers into narrow parking spaces, prevents collisions and reduces their severity.
Future SAE Level 2 applications will also use LiDAR-assisted sensing technology to meet the complexity and safety demands of urban traffic. Powerful sensors enable vehicles to be equipped with different SAE Level 2 features. It will also be possible to improve them with over-the-air updates after the vehicle is purchased. This also means that Mercedes-Benz can constantly improve existing systems and thus always offer the most advanced technologies in its cars. It is SAE Level 3 system upgrade ready with MB.OS software and computing power, a comprehensive sensor set that includes a LiDAR sensor and backups for vital vehicle systems.
Sustainability and circular solutions with Ambition 2039 vision
Mercedes-Benz acts with the Ambition 2039 vision. This vision aims for the new vehicle fleet to be net carbon neutral across the entire value chain by 2039. This doesn't just include the supply chain. It also includes the company's strategy and mindset that the future of transportation must be sustainable. This approach is fully electric and supported by the circular economy. Of course, all of this is viewed through the lens of Mercedes-Benz's goal of producing the world's most desirable cars. The MMA platform forms the basis for the first family of vehicles designed based on the principles established in Ambition 2039. Compared to the previous architecture, the value chain CO2 across the entire MMA fleet is reduced by over 40 percent. Concept CLA Class stands out as the first member of this new family.
“Setting standards since 1886”
Since Carl Benz invented the automobile 137 years ago, Mercedes-Benz has constantly been setting standards. From the A-Class to the S-Class and beyond, the company's vision continues to shape the evolution of the automobile like no other vehicle manufacturer. Mercedes-Benz supports this pioneering spirit at this year's IAA Mobility. The theme “Setting standards since 1886” forms the backbone of the global marketing campaign, which starts with IAA Mobility in Munich and will later expand worldwide. The campaign, prepared in a holistic way, consists of a 60-second brand film, social media content on the Mercedes-Benz website, as well as outdoor advertising in Munich and other cities in Germany.