Stellantis Reveals STLA Medium Platform For C- And D-Segments

Stellantis unveiled its all-new STLA Medium platform, designed for all-electric autos – passenger vehicles, crossovers, and SUVs – in C and D segments.

It is the primary out of 4 new all-electric platforms (Small/Medium/Massive/Body), which have been introduced two years in the past, in July 2021 on the Stellantis EV Day 2021 presentation.

The corporate explains that the STLA Medium is designed to impress the guts of the worldwide automotive market, as C- and D-segments account for almost half of the full autos bought globally (35 million out of 78.5 million).

Within the case of Stellantis, the group’s manufacturers provide 26 car nameplates in these segments (presently utilizing a wide range of platforms). Full electrification of these fashions with using STLA Medium platform might doubtlessly end in as much as two million BEVs yearly, which might be produced at a number of crops internationally (beginning in Europe this yr).

Stellantis additionally says that the brand new platform is designed to satisfy buyer expectations on what issues most to them: “Greatest-in-class vary of greater than 700 km (435 miles), charging time, efficiency, effectivity, affordability, driving pleasure.”

Let’s now transfer to the technical potential of the platform.

Stellantis STLA Medium Platform

The Stellantis STLA Medium platform shall be used for a double-digit variety of fashions from numerous manufacturers.

Common targets:

  • Segments: C and D segments
  • Physique kind: passenger vehicles, crossovers, and SUVs
  • Manufacturers: a number of manufacturers
  • Potential manufacturing: as much as 2 million models yearly
  • Wheelbase: 2,700-2,900 millimeters
  • General size: 4.3-4.9 meters
  • Floor clearance: greater than 220 mm “to make sure off-road functionality and efficiency”
  • Wheels: as much as 750 mm in diameter, “a key attribute for the platform design”
Stellantis STLA Medium Platform
Stellantis STLA Medium Platform

The Stellantis STLA Medium platform shall be accessible in two configurations – front-wheel drive and all-wheel drive and the ability output will vary from 160 to 285 kW:

  • front-wheel-drive: single motor
  • all-wheel-drive: dual-motor (one within the entrance and one within the rear)

Peak energy output:

  • from 160 to 285 kW, relying on the model
    [BEV platforms will utilize a family of three, scalable electric drive modules (EDMs)]

When it comes to battery and vary, Stellantis says that its plan is to have a best-in-class driving vary of greater than 435 miles (700 km) on the Worldwide Harmonized Mild Automobiles Take a look at Process (WLTP).

There shall be two major battery choices, as much as 98 kilowatt-hours (kWh) of usable battery capability:

  • Commonplace pack: greater than 310 miles (500 km) WLTP
  • Efficiency pack: greater than 435 miles (700 km) WLTP
    as much as 98 kilowatt-hours (kWh) of usable battery capability

As we perceive, the smaller battery shall be as much as round 70 kWh of usable battery capability (calculated proportionally to the vary).

The STLA Medium Platform’s battery system will depend on a 400-volt electrical structure (Stellantis makes use of 800 V techniques solely in a few of its BEVs – primarily based on the STLA Massive and STLA Body).

Stellantis STLA Medium Platform

Stellantis STLA Medium Platform

In response to the corporate, the vitality effectivity of the brand new platform is anticipated to be best-in-class, at lower than 14 kWh per 62 miles (100 km) or 225 Wh/mile (140 Wh/km). The numbers are associated to the WLTP take a look at cycle, as we perceive.

  • Vitality consumption: lower than 14 kWh per 62 miles (100 km) or 225 Wh/mile (140 Wh/km)

Very attention-grabbing is its quick charging functionality, which based on the corporate will enable recharging the battery from 20 to 80 % of state-of-charge (SOC) in 27 minutes. It is not as quick as within the case of among the fastest-charging mainstream fashions, however not the slowest both.

Stellantis revealed additionally that the charging fee shall be 2.4 kWh per minute. If we recalculate it to energy, it must be 144 kW – doubtlessly, that is the common fairly than the height. Nothing particular, however in all probability acceptable for common mainstream fashions.

  • Quick charging: 20-80 SOC in 27 minutes
  • Fee: 2.4 kWh per minute (or some 144 kW)
    (64.8 kWh assuming flat fee over 27 minutes)

In response to Stellantis, the STLA Medium platform will ship “best-in-class battery packaging price that additionally enhances manufacturing volumes”.

To maintain issues easy, the perimeter dimensions of the battery pack are fixed, whatever the battery model, with frequent tray and cooling designs.

“Stellantis engineering and manufacturing specialists targeted on making set up of the modular, high-energy density single-layer battery pack on the meeting plant as environment friendly as potential, maximizing area contained in the car and enhancing journey and dealing with with a low middle of gravity. Platform parts, such because the cabin heating/cooling system, steering, braking help and propulsion are designed to attenuate vitality consumption. These efforts mix with in depth use of light-weight and inflexible supplies to optimize car vary and ship exemplary journey and dealing with efficiency.”


All the new Stellantis platforms are promised to be engineered to be future-proof, together with modularity and suppleness (wheelbase, width, overhang, journey peak, and suspension design).

The corporate’s plan is to adapt and enhance the capabilities and efficiency of autos over time “with the implementation of the STLA Mind structure, STLA SmartCockpit and STLA AutoDrive platforms – enabling over-the-air updates to software program and enhanced {hardware}.”

The corporate is able to accommodate future battery chemistries and kinds, itemizing nickel- and cobalt-free and solid-state batteries as potential choices.

Carlos Tavares, Stellantis CEO mentioned:

“What we see right this moment is the product of simply over two years of no-compromise innovation to ship clear, secure and inexpensive mobility, supported by our €30 billion funding in electrification and software program via 2025. The STLA Medium platform demonstrates the ability of the worldwide Stellantis technical neighborhood, delivering merchandise which can be hyper-focused on our prospects and rewriting long-held assumptions of transportation as we drive for carbon web zero by 2038.”

100% Electrical Lineup In Europe By 2030

Stellantis Dare Ahead 2030 strategic plan units a goal to succeed in one hundred pc passenger automotive electrification (100% BEVs) in Europe by 2030. In the USA, the BEV gross sales combine amongst passenger vehicles and light-duty vehicles shall be 50 % at that time.