Beyond Full Touchscreens: Why Physical Buttons Are Making a Comeback in Smart Cockpit Design

In early August, Mercedes-Benz CEO Ola Källenius publicly stated in an interview with overseas media that the industry’s approach of completely removing physical buttons from vehicle interiors in pursuit of a high-tech image has “gone too far.” Mercedes-Benz will retain physical controls in key functional areas in the future, achieving a balance between large touchscreen displays and traditional buttons. The statement quickly sparked widespread discussion across the automotive industry and also marked a global rational shift in the long-running trend of “buttonless” vehicle interior design.

1. From Radical Experimentation to Practicality: Global Automakers and Regulators Move Toward a Balanced Approach

At the automaker level, Volkswagen has made the most significant shift. In March 2026, Volkswagen officially announced that it would completely abandon touch-sensitive sliding controls inside its vehicles. Updated ID. models, the Golf GTI, and other vehicles will bring back physical buttons and rotary controls for steering wheel functions and climate control areas. Previously, the touch-based solutions had resulted in a 300% increase in user complaints, with accidental touches and difficulties with blind operation becoming the main pain points.

Luxury brands including Porsche, Ferrari, and Audi are also making similar adjustments. Porsche continues to retain physical switches and rotary knobs for frequently used functions such as climate control and volume adjustment. Ferrari has even introduced official retrofit services for older models, allowing owners to replace touch-based steering wheels with physical controls. Audi has removed steering wheel touch sliders from several new models, including the A5 and Q5, and restored physical rotary controls.

Regulatory requirements are further accelerating this trend. The 2026 version of the Euro NCAP regulations has officially taken effect, requiring five key safety functions — turn signals, windshield wipers, hazard lights, horns, and emergency calls — to be equipped with physical controls. Vehicles relying entirely on touchscreen interfaces will no longer be eligible for a five-star safety rating.

China is also following the same direction. The revised mandatory national standard GB 4094 issued by the Ministry of Industry and Information Technology specifies that starting from July 2026, 19 key vehicle functions, including turn signals, gear selection, window controls, and intelligent driving activation, must be equipped with physical operating controls. Each control must have an effective operating area of no less than 10mm × 10mm, support blind operation, and remain functional even when the vehicle infotainment system crashes.

2. The Essence Is About Safety Correction: Cars Are Not Smartphones

The rapid decline of fully touchscreen-based interiors stems from the fact that this design approach violates the fundamental logic of interaction in driving scenarios. The return of physical buttons is not a nostalgic move in terms of design aesthetics, but rather a return to the dual priorities of driving safety and operational efficiency.

Authoritative testing data has already confirmed this conclusion. Tests conducted by the German automobile association ADAC showed that completing basic operations such as adjusting the air conditioning or switching windshield wipers takes an average of 3.2 seconds via a touchscreen, while physical buttons require only 0.9 seconds. At a vehicle speed of 80 km/h, this 2.3-second difference means the car will travel approximately 50 meters with the driver’s attention partially diverted, which is enough distance to cover the full braking range during an emergency situation. Research from the U.S. Insurance Institute for Highway Safety (IIHS) also indicates that the risk of accidents caused by operating in-vehicle touchscreens is 3.2 times higher than during normal driving.

The deeper conflict lies in the fact that the core principle of automotive interaction is “minimizing driver attention consumption,” while the logic of smartphones is “capturing user attention.” Over the past decade, the automotive industry has blindly adopted the all-touchscreen interaction model from smartphones, essentially confusing two completely different usage scenarios. Physical buttons, through fixed locations and tactile feedback, create muscle memory that remains the most efficient and safest form of interaction in a driving environment.

3. The End Goal Is Hierarchical Interaction, Not a Complete Return to the Past

It is important to clarify that the return of physical buttons does not mean going back to the densely packed button layouts of the traditional internal combustion engine era. Instead, it represents the establishment of a more scientific hierarchical interaction system, where the most suitable interaction method is selected based on the safety priority and frequency of use of each function.

The industry has now reached a clear consensus: core driving functions closely related to safety should prioritize physical buttons and control stalks. Medium-frequency comfort functions such as air conditioning, volume adjustment, and seat controls can adopt a combination of physical knobs and smart surfaces, balancing interior design integration with operational efficiency. Lower-frequency functions, including navigation, entertainment, and vehicle settings, can continue to be handled by large displays, with voice interaction reducing the need for manual operations.

This trend is also creating new opportunities for technologies such as in-mold electronics and piezoelectric touch interfaces. Unlike earlier approaches that simply removed physical buttons, next-generation smart surfaces integrate touch modules beneath interior panels. When the display is off, they blend seamlessly with the surrounding interior design; during operation, they provide vibration feedback and pressure recognition. This approach satisfies the demand for minimalist design while partially addressing the challenges of blind operation, making it an increasingly popular compromise solution among mainstream automakers.

For the Chinese automotive market, this round of adjustment also carries important lessons. Many automakers are still competing over screen size and screen quantity, with some even integrating basic functions such as hazard lights and trunk release buttons entirely into displays, sacrificing real-world usability for showroom visual impact. While large screens may provide short-term marketing appeal, users will ultimately prioritize practicality in the long run.

The competition in automotive interior design is shifting from “visual marketing orientation” toward “experience engineering orientation.” The ultimate value of technology has never been to make users feel impressed by its presence, but rather to make technology disappear naturally into the user experience. From screen stacking to experience-driven design, this transformation in automotive interiors may appear to be a step backward, but it is actually a necessary stage in the industry’s path toward maturity.