Stellantis launches new STLA framework to support electric vehicles, hybrid vehicles,

The new architecture also supports up to 14,000 lb (6,350 kg) of towing capacity and 2,700 lb (1,224 kg) of payload

Stellantis’ latest multi-energy platform, the STLA framework, has been launched, demonstrating the powertrain flexibility that automakers increasingly need to stay ahead of the curve. Designed to support virtually any vehicle from internal combustion engine (ICE), hybrid, hydrogen, battery electric (BEV) and range extender vehicles, the STLA framework is Stellantis’ response to an industry undergoing rapid technological transformation.

The modular platform is the basis for the Ram 1500 REV and Ram 1500 Ramcharger, and is designed for full-size, off-the-shelf pickup trucks and SUVs. According to Stellantis, range extender models using the STLA frame can achieve a range of up to 690 miles (1,100 kilometers), while BEV models can travel up to 500 miles (805 kilometers) per charge. The platform is also designed to handle up to 14,000 pounds (6,350 kilograms) of towing capacity and 2,700 pounds (1,224 kilograms) of payload.

Read: The 2025 Ram 1500 Ramcharger is an electric truck that really makes sense, thanks to its V6 engine

The core of the STLA frame is a high-strength steel structure with a floor-integrated battery pack designed to lower the center of gravity and increase rigidity. All models based on this architecture also feature full-length belly pans to reduce aerodynamic drag and support wading depths of up to 24 inches (610 mm), which is important for pickups and SUVs.

To achieve a 500-mile range, Stellantis equipped the STLA Frame with a liquid-cooled battery pack ranging from 159 kWh to 200 kWh. Charging times have also been technically improved. Thanks to an advanced 800-volt electrical architecture, BEV models can travel 100 miles in just 10 minutes using a 350 kW DC fast charger. The range-extender version uses a 400-volt system and can travel 50 miles in 10 minutes using a 175-kilowatt charger.

Bi-directional capabilities complete the charging technology, allowing these vehicles to power homes, charge other electric vehicles, and even feed energy back to the grid.

The combination of power and performance

A big truck with a big battery needs just as much power. The STLA frame accommodates electric motors mounted on the front and rear axles, each delivering 335 horsepower. The two combine to deliver brisk performance, with 0-60 mph (96 km/h) in just 4.4 seconds. That’s high-end sports car speed for what is essentially a rolling power tool.

missing part

Interestingly, Stellantis has yet to specify a timeline for ICE, hybrid and hydrogen-powered iterations of the platform. For now, the focus remains on pure electric vehicles and range-extender setups, as seen with the Ram 1500 REV and Ramcharger. This emphasis on electrification appears to be deliberate, but it leaves open questions about how soon other powertrains will debut.

As Stellantis CEO Carlos Tavares explains, the STLA frame “offers best-in-class range, payload and towing to customers who want reliable and capable trucks and SUVs.” Tavares positions the platform as a hesitant to adopt A “no-compromise” solution for buyers of electric vehicles and emphasizing its role in the company’s upcoming Jeep and Ram product blitz.