Stellantis Unveils STLA Large Platform for D, E Segments

March 1, 2024

Chris Clonts

Stellantis on Friday unveiled its STLA Large platform, which will be the basis for eight new EVs from sedans to Trail Rated SUVs by 2026.

The STLA platform was first announced in 2021 when the company introduced the coming set of global BEV platforms that also includes STLA Small, Medium and Frame. All are designed to use Stellantis’ next-gen electrical architectures and software-defined vehicle technologies such as STLA Brain, STLA SmartCockpit and STLA AutoDrive.

Stellantis CEO Carlos Tavares touted the flexibility of the STLA platforms in a news release. “Creating a family of vehicles from a well-engineered set of components that is flexible enough to cover multiple vehicle types and propulsions, outperforming any of our current products, will address each of our iconic brands’ customers,” he said, adding that the platform “will be a driving force in the shift to electrification in North America.”

STLA Large will be used to build vehicles for the D (large family/mid-size) and E (executive/full-size) segments, with the first vehicles to launch for Dodge and Jeep, followed by Alfa Romeo, Chrysler and Maserati. The company said brand-specific product announcements would begin this year.

Stellantis’ release highlighted the platform’s following capabilities:

• Charging efficiency of 4.5 kWh/minute
• 0-to-62 mph (0-to-100 kph) acceleration in the “2-second range”
• Flexibility to use 400-volt and 800-volt electrical architectures

Engineers and designers will be able to adjust the platform’s wheelbase, overall length, overall width, height and ground clearance. Modular suspension systems and powertrain cradles can be used to support different ride, handling and comfort

characteristics. “Engineers can adjust key dimensions such as the front spindle to the driver’s foot, front and rear overhang, or the passenger compartment floor,” the company’s release said.

Powering the vehicles will be three-in-one electric drive modules that include motor, inverter, and gear reduction. The inverter uses silicon carbide technology to minimize power losses. The system can accommodate front-, rear- or all-wheel drive and can be upgraded via over-the-air (OTA) updates.

The company said the platform targets an overall range of 500 miles (800 km) for sedans and is built to accept different battery technologies when they are ready. “Overall, the platform has the potential to carry extreme power that will outperform any of the existing Hellcat V-8s,” the release said.

The platform’s dimensional range:

• Length: 187.6-201.8 inches (4,764-5,126 mm)
• Width: 74.7-79.9 inches (1,897-2,030 mm)
• Wheelbase: 113-121.1 (2,870-3,075 mm)
• Ground clearance: 5.5-11.3 inches (140-288 mm)
• Max tire diameter: 32.6 inches (858 mm)

The company clearly emphasized STLA Large’s EV applicability, but did say that it also can accommodate ICE and HEV powertrains.

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