Stellantis has unveiled the specifications for its STLA Frame platform, a modular chassis designed to support a new generation of full-size SUVs, pickup trucks, and light commercial vehicles, many of which will be electric. This platform will also accommodate plug-in hybrid (PHEV) and hydrogen-powered vehicles, further reinforcing Stellantis’ commitment to versatile and sustainable mobility. It is one of four modular platforms in Stellantis’ lineup, alongside STLA Small, STLA Medium, and STLA Large, each designed for flexibility and upgradability in components such as battery chemistry, electric motors, and software.
The STLA Frame platform features a ladder-type frame chassis, with a widened central section to house the battery pack for electric models. A full-length belly pan reduces aerodynamic drag, maximising efficiency. Battery sizes will range from 159 kWh to over 200 kWh, supporting 800-volt architecture for high-speed charging up to 350 kW, adding 160km of range in just 10 minutes under optimal conditions. Series PHEVs will use a 400-volt system, capable of charging at up to 175 kW.
Performance-wise, the platform supports up to 804km of range in EV mode and 1,110km in series PHEV mode. It offers impressive towing capabilities, with a maximum towing capacity of 6,350kg and a payload capacity of 1,224kg, surpassing the performance of some current Ram light-duty models. The platform is designed for off-road enthusiasts, able to ford up to 24 inches of water and accommodate tyres up to 33 inches in diameter, with ground clearance ranging from 6.6 to 10.3 inches. Dual-motor all-wheel-drive configurations are supported, with the most powerful electric motors delivering 335hp, enabling some models to accelerate from 0-100km/h in just 4.4 seconds.
The 2025 Ram 1500 REV electric truck and the 2025 Ram 1500 Ramcharger PHEV will be the first vehicles to adopt the STLA Frame, with production starting soon. Electrified Jeep Wagoneer SUVs are also expected to follow in late 2025. Stellantis’ modular platform approach allows for a broad range of vehicles across its diverse brands, with the STLA Small and STLA Medium platforms targeting compact and midsize vehicles, respectively, though it remains unclear whether STLA Small-based models will enter the U.S. market. This multi-platform strategy reflects Stellantis’ effort to balance flexibility and sustainability, with the STLA Frame playing a key role in meeting the demand for powerful, capable, and environmentally friendly vehicles.
