Subaru’s electric lineup has grown, but mostly thanks to Toyota. Now it wants more control over what comes next. It’s developing a new EV platform, battery technology, and electronics that could give it more engineering control over future electric cars.
According to Automotive News, Subaru presented the technologies at its proving ground north of Tokyo on October 18. Its all-wheel-drive prototype produces 510 horsepower and can accelerate from 0 to 62 mph (100 km/h) in under four seconds.
Some of the technology could enter production around 2029, though Subaru hasn’t confirmed a vehicle or a firm launch date. The prototype, which looks like a hacked-up Outback, is a development tool, not a confirmation that its next production EV will have that shape or those specs.
Subaru wants EVs that reflect its own priorities from the start, rather than adapting a Toyota platform. Engineering executive Takatomo Watamori told Automotive News that controlling the underlying technology would help preserve the safety and driving character that distinguish the brand.
Subaru’s EV history actually predates its current Toyota partnership. It developed the little R1e with Tokyo Electric Power Company in the 2000s, then announced the fully electric Plug-in Stella for Japan in 2009. The latter entered limited-series production, and around 170 examples were reportedly built.
Subaru's modern EV ambitions began with the 2023 Solterra, closely related to the Toyota bZ4X. The collaboration has since expanded to include the Trailseeker, Uncharted, and the three-row Getaway, giving Subaru a much broader electric portfolio than what it could have developed on its own.
Even though its vehicles look very similar to the Toyotas they are based on. Subaru says its engineers contributed extensively to the Trailseeker’s all-wheel-drive development and motor tuning. However, developing its own platform would take that involvement further, letting it shape the complete vehicle rather than relying on shared underpinnings with their inherent limitations.
The new architecture targets a 100-kilogram (220-pound) weight reduction compared to the EVs it currently produces. Engineers have also redesigned the front structure to better protect passengers and the battery during a collision. Its front structure includes supports that curve over the front wheels to distribute crash forces, while the front motor is designed to rotate during an impact to help dissipate energy.
Subaru is still working with outside specialists. Aisin, a Toyota Group supplier, developed the prototype's drive units, while Panasonic Energy is the battery partner. Both collaborations date to 2024. In-house vehicle development these days doesn’t mean manufacturing every component independently. Outsourcing to the right specialist is the way to go.
Subaru says the prototype’s motors are smaller and lighter than those in its current EVs. Engineers also claimed a 30% efficiency improvement (against an unspecified benchmark), although the report doesn’t explain that comparison well enough to translate it into a meaningful range advantage.
In a video from LOVECARS!TV!, the reviewer describes the prototype as combining BRZ-like eagerness to turn with all-wheel-drive traction, praising how planted it feels through corners. He also reports double-wishbone front suspension and a five-link rear setup. His drive was limited to two laps under speed restrictions, so this was an early impression rather than a full assessment, but it offers an encouraging glimpse of the driving character Subaru wants its own EVs to deliver.
The battery pack contains 4,000 cylindrical cells. Subaru says it cuts weight by 25% over its previous battery and is targeting an energy density 20% above the industry average. The company hasn’t yet disclosed capacity, driving range, or charging performance.
The push for independence also extends to software and electronics. Subaru is developing an integrated electronic control unit to manage driver assistance, chassis and powertrain functions, and infotainment. It uses a custom chip developed with AMD and will support AI functions in a future version of Subaru’s EyeSight advanced driver assistance suite.
The system will also enable over-the-air updates, a first for a vehicle independently developed by Subaru. It plans to manufacture the control unit itself and use it across its lineup to reduce costs.
Quick development is another priority. Subaru says it created the prototype’s technologies in roughly half the usual time as it tries to keep pace with Chinese competitors. It believes the same development methods can accelerate work on future gasoline and hybrid vehicles.
Paying for all this will require a relatively small manufacturer like Subaru to plan its investment carefully. It sold about 924,000 vehicles worldwide in 2025, compared to over 11 million for Toyota. Its goal is to reach 1.2 million annual deliveries in the early 2030s, supported by 10 new vehicles that it plans to launch by then.
There’s also no indication that Subaru plans to end its partnership with Toyota. It has spent decades giving people reasons to choose its cars over larger rivals, wooing them with its reputation for mechanical engineering, top-tier safety, and a highly focused brand identity centered on outdoor lifestyle. Now it needs to make those things matter again, but without a boxer engine under the hood.
The video also draws a more direct connection to the Subaru Performance-E STI concept, shown at the 2025 Japan Mobility Show. The presenter describes the prototype as a development vehicle for the concept’s underlying hardware, suggesting this technology could have a future beyond family crossovers. That isn’t confirmation of a production electric STI or WRX, but it gives enthusiasts a more concrete reason to be excited.
That remains speculation, though, since Subaru hasn’t confirmed that this platform will underpin a production version of the concept, or that such a car would wear either badge. It does show, however, that Subaru’s electric ambitions extend beyond practical family crossovers, and it looks like it wants models that remind us of its world rally success.
