Stellantis introduces STLA Large

It will initially be deployed in North America under the Dodge and Jeep brands. Other brands such as Alfa Romeo, Chrysler, and Maserati will follow in the next step. From 2024 to 2026, eight vehicles will be launched.

The "STLA Large" platform has been developed with high technological flexibility. This allows for a higher degree of vehicle diversity and high quality, thereby ensuring customer satisfaction from a basic set of components. At the same time, according to Stellantis, "STLA Large" stands for robust and cost-efficient manufacturing processes that can be adopted in multiple production plants.

Dodge and Jeep could launch as early as 2024

The future products will cover a full range of vehicle types, from conventional passenger cars to crossovers to SUVs. These will offer customers the benefits of electric drive: instant torque response while delivering zero emissions. Initial brand-specific product announcements will follow later this year.

"Our goals for our STLA platforms are ambitious. However, that is exactly what our customers need from us today," said Carlos Tavares, CEO of Stellantis, and he continued:

"Creating a family of vehicles from a mature set of components that is flexible enough to cover multiple vehicle types and powertrains will appeal to all our customers of our iconic brands, as we surpass all our current products. The flexibility and agility of this platform is its hallmark and will be a driving force for our success in transitioning to electromobility in North America."

"STLA Large" is the second to be unveiled after the "STLA Medium" platform in July 2023. "STLA Large" will be installed in several plants in Europe and North America, and multi-energy variants will also be available on this basis, meaning vehicles with hybrid and combustion engines.

From Sports Coupe to Off-roader

The brands are to design their respective models based on the STLA Large platform in such a way that they best meet the needs and desires of their customers. This includes vehicles for families, high-performance cars, off-road vehicles with all-wheel drive, and luxury vehicles.

The great flexibility of the platform allows engineers and designers to adjust the wheelbase, overall length, overall width and height, and ground clearance. To meet vehicle-specific performance goals such as drivability, handling, and comfort, various suspension modules and powertrain mounts can be used. Engineers should be able to adjust key dimensions such as the front axle to the driver's foot, front and rear overhang, or the floor of the passenger compartment to optimize the vehicle's capabilities and performance.

The platform uses advanced high-strength materials and is optimized for weight and stiffness to enable top-notch performance across the entire range of vehicle types. Components within the platform are designed to maximize usable interior and storage space. Key comfort and performance components such as the interior heating/cooling system, steering, brake support, and drive system have been developed to minimize energy consumption and maximize range.

With 800- and 400-Volt Technology

The flexibility includes the powertrain systems of the unibody platform. "STLA Large" is designed and developed as a platform geared towards BEV with the option of 400-volt and 800-volt electric architectures.

The three-in-one electric drive modules (EDMs), which contain the motor, inverter, and reduction gearbox, can be configured differently: with front-wheel drive, rear-wheel drive, and all-wheel drive. The inverter uses silicon carbide semiconductor technology to minimize power losses. The power of the drive system can be improved over the vehicle's lifetime through over-the-air software updates.

Based on specific vehicle goals, "STLA Large" accepts powertrain enhancements like limited-slip differentials or axle disconnects that can improve performance or reduce mechanical resistance to enhance efficiency and range. Overall, the "STLA Large" platform has the potential to deliver extreme performance that surpasses any existing Hellcat V8.

Since it is important to find the right balance between range and cost, the platform initially includes battery options with energy outputs between 85 and 118 kilowatt-hours (kWh). "STLA Large" targets a total range of 800 km for sedans. The platform is designed to easily integrate future energy storage technologies once the corresponding technologies are production-ready.

0-100 km in the two-second range: Dodge first?

The first generation of drive components has the potential to deliver 0-100 km/h acceleration in the two-second range. The 800-volt battery will charge quickly at up to 4.5 kWh per minute.

"STLA Large" also supports hybrid and combustion powertrain systems without compromising key vehicle functions. The flexibility provides a bridge for customers around the world in transitioning to electric drive and developing a robust and widespread charging network. The design flexibility includes transverse and longitudinal engine mounting configurations that support front, rear, and all-wheel drive powertrains.
 

The key metrics of "STLA Large":

• Total length range: 187.6-201.8 inches (4,764-5,126 mm)

• Total width range: 74.7-79.9 inches (1,897-2,030 mm)

• Wheelbase range: 2,870-3,075 mm (113.0-121.1 inches)

• Ground clearance: 5.5-11.3 inches (140-288 mm)

• Maximum tire diameter: 32.6 inches (858 mm)