Stellantis: There will be the STLA One platform. Universal, global, C-segment, factory in FRANCE

Stellantis Group announced that starting in 2029, it will produce three new vehicle models on the new STLA One platform. This platform will be modular (compare to Volkswagen’s MEB), versatile, meaning it can accommodate both combustion (hybrid) and electric powertrains, and global, meaning it will be used across the entire Stellantis Group. Peugeot C-segment models built on this platform will roll off the assembly line in Mulhouse, France.

The mysterious STLA One is the next generation of EMP, EMP2 V4?

The current STLA Medium platform used in C and D segment vehicles is directly derived from the EMP2 platform, and it has even been referred to as EMP2 V4 or EMP3 at times. It was designed for large and heavy vehicles, which is why even in the C segment (Peugeot E-3008), it allows for the use of batteries with a total capacity exceeding 100 kWh. For those who need maximum range, this is an advantage, but it comes at a cost: weight and production expenses.

STLA Medium platform. The structure in the center allows an exhaust pipe to pass through when there are no batteries in the chassis.

Right below it is the EMP2 V3, which is cheaper and smaller, but can accommodate batteries with a capacity of up to about 60 kWh. As a result, the Opel Astra Electric is unable to compete with the VW ID.3 in terms of range, while the Peugeot E-3008 is more expensive than the VW ID.4. Across the entire Stellantis group, there are no solutions that would allow for the introduction of a C-segment hatchback or crossover (~4.4 meters long) capable of competing with rivals in terms of price and range (VW ID.3, Renault Scenic E-Tech Electric, Volvo EX40, Kia EV3, etc.).

We therefore assume that the STLA One platform will be a streamlined version of the STLA Medium, capable of holding significantly larger batteries.

The Peugeot models built on the STLA One platform will hit the market in 2029, all of them in the C or C-SUV segment, as this segment accounts for 30 percent of the European market. The manufacturer promises to “reduce costs by 20 percent through optimizations and economies of scale.” The platform is said to be “scalable,” though it’s unclear whether that applies upward or downward. The Peugeots based on STLA One are announced as the “first,” but that doesn’t mean Jeep models based on it won’t appear at the same time. Meanwhile, the group is likely to aim to lower prices by selling Leapople, Opel models built on Chinese Leapmotor platforms.

Stellantis factory in Mullhouse (c) Stellantis

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