The Smart #6, the largest model yet from the Geely-Mercedes-Benz joint venture, is currently undergoing rigorous winter testing in China. This 4.9-meter plug-in hybrid liftback represents a significant expansion of the Smart brand’s lineup, moving beyond its traditionally compact offerings. The vehicle leverages Geely’s hybrid technology, combining a 1.5-liter turbocharged engine with an electric motor to deliver a combined power output of 429 hp.
Key Specs and Testing Details
Smart officials confirmed the winter tests on February 9, though specific details on the exact test location were not disclosed. CarNewsChina speculates that testing is taking place in Heilongjiang province, one of China’s coldest regions where temperatures can plummet below -35°C. This environment ensures the vehicle’s systems are pushed to their limits. Geely has a history of performing cold-weather tests in this region with other models, including the Geely EX5 EM-i.
The Smart #6’s exterior styling, developed by Mercedes-Benz, is visible even under thick camouflage. Notable features include a roof-mounted LiDAR sensor, an interactive light panel between the headlights, and retractable door handles. These design elements align with Smart’s current electric vehicle aesthetic.
Performance and Range
The Smart #6 utilizes Geely’s “AI Super Hybrid 2.0” system. The powertrain includes a 161 hp 1.5T engine paired with a 268 hp electric motor, connected through a 3-speed DHT (Dedicated Hybrid Transmission). This setup results in a total system output of 429 hp. The vehicle offers a CLTC-rated pure electric range of 285 km. When the internal combustion engine is engaged, the combined range extends to an impressive 1,810 km, with a fuel consumption rate of 3.9 liters per 100 km when running solely on gasoline.
Why This Matters
The Smart #6’s launch represents a strategic shift for the brand. By expanding into the mid-size liftback segment, Smart aims to capture a broader audience. The decision to leverage Geely’s hybrid technology while maintaining Mercedes-Benz design standards is a calculated move to balance cost-effectiveness with premium appeal. The extensive winter testing underscores the importance of reliability in harsh conditions – a key requirement for any vehicle marketed in regions with extreme climates.
The Smart #6 is set to enter the market soon, bridging the gap between German engineering and Chinese manufacturing. Its performance specifications and extended range suggest a compelling offering for consumers seeking a fuel-efficient and versatile vehicle.


















