Subaru develops its own EV platform with a 510-hp prototype and lighter battery

Subaru is developing its own electric vehicle platform, battery technology and electronics to reduce its reliance on Toyota, and showed the work at its proving ground north of Tokyo on October 18 in the form of a 510-horsepower all-wheel-drive prototype.

The mule, which looks like a modified Outback, accelerates from 0 to 62 mph (100 km/h) in under four seconds, and some of its technology could reach production around 2029, though Subaru has not confirmed a vehicle or a firm launch date.

What the prototype is, and what it is not

The car is a development tool rather than a preview of a specific showroom model, so its shape and output should not be read as a commitment for Subaru's next production EV. Engineering executive Takatomo Watamori said controlling the underlying technology would help preserve the safety and driving character that distinguish the brand, according to Automotive News.

That matters because Subaru's current electric lineup, the Solterra, Trailseeker, Uncharted and three-row Getaway, is built on Toyota underpinnings. Subaru says its engineers contributed extensively to the Trailseeker's all-wheel-drive development and motor tuning, but owning the platform would let it shape the complete vehicle rather than work within shared architecture.

Battery, motors and crash structure

The battery pack contains 4,000 cylindrical cells. Subaru says it is 25 percent lighter than its previous battery and targets an energy density 20 percent above the industry average.

Subaru has not disclosed the pack's capacity, the prototype's driving range or its charging performance, so no range figure can be attached to this car yet.

The motors are smaller and lighter than those in Subaru's current EVs, and engineers claimed a 30 percent efficiency improvement against an unspecified benchmark, a comparison the report does not detail well enough to translate into a range advantage.

The architecture targets a 100-kilogram (220-pound) weight reduction compared with the EVs Subaru currently produces, and the front structure has been redesigned to protect passengers and the battery in a collision, with supports that curve over the front wheels to spread crash forces and a front motor designed to rotate on impact to dissipate energy.

Subaru is not building everything itself. Aisin, a Toyota Group supplier, developed the prototype's drive units and Panasonic Energy is the battery partner, both collaborations dating to 2024.

Software, chips and development speed

Subaru is developing an integrated electronic control unit to manage driver assistance, chassis, powertrain and infotainment, built around a custom chip developed with AMD. A future version will support AI functions in Subaru's EyeSight advanced driver assistance suite, and the system will allow over-the-air updates, a first for a vehicle independently developed by Subaru. The company plans to manufacture the control unit itself and use it across its lineup to cut costs.

Subaru says it created the prototype's technologies in roughly half the usual time as it tries to keep pace with Chinese competitors, and believes the same methods can speed up work on future gasoline and hybrid vehicles.

Early impressions and the STI question

A reviewer from LOVECARS!TV! described the prototype as combining BRZ-like eagerness to turn with all-wheel-drive traction, and reported double-wishbone front suspension and a five-link rear setup. The drive was limited to two laps under speed restrictions, so it is an early impression rather than a full assessment.

The same video draws a link between the prototype and the Subaru Performance-E STI concept shown at the 2025 Japan Mobility Show, describing the mule as a development vehicle for that concept's hardware. That is not confirmation of a production electric STI or WRX, and Subaru has not said the platform will underpin a production version of the concept or that such a car would wear either badge.

Why independence is a financial balancing act

Subaru sold about 924,000 vehicles worldwide in 2025 against more than 11 million for Toyota, and aims for 1.2 million annual deliveries in the early 2030s supported by 10 new vehicles launched by then. Funding an in-house platform, battery and electronics programme on that scale requires careful planning, which is why the company is outsourcing drive units and cells to specialists rather than making every component itself.

There is no indication Subaru plans to end its Toyota partnership. The brand built its reputation on mechanical engineering, safety and an outdoor-lifestyle identity, and the task now is to carry those priorities into electric cars without a boxer engine under the hood.

Subaru's electric history predates the Toyota tie-up: it developed the R1e with Tokyo Electric Power Company in the 2000s and announced the fully electric Plug-in Stella for Japan in 2009, which reached limited-series production with around 170 examples reportedly built.

A final-year car that barely left the garage

Ferrari built the F50 as a street-legal nod to its Formula 1 programme, and chassis 107165 arrived late in that stretch. It left the factory in Rosso Corsa over black leather with red seat inserts, and was delivered new through Maranello Sales Ltd in Egham, Surrey, one of roughly 25 F50s that went to UK buyers.

Broad Arrow's catalogue describes a single UK first owner who kept the car stored and unregistered, followed by export to a European collection, with limited showing and no record of extended road use. Service work in recent years included belt and fluid changes, which helps explain how the odometer stayed near delivery mileage.

Alexander Weaver, senior car specialist and vice president at Broad Arrow Auctions, called it "certainly the lowest mileage example of an end-of-an-era supercar" and said the F50 "offers the ultimate mechanical, unfiltered driving experience, powered by Formula 1-derived technology".

Formula 1 engineering under the clamshell

Under the clamshell sits a 4.7-litre V12 producing 513 horsepower, a powerplant derived from Ferrari's 1990 Formula 1 engine rather than adapted from any road-car unit.

A late build number paired with near-zero use is rare even by F50 standards: most surviving cars from the 349-unit run have accumulated meaningfully more miles over three decades, which is why this chassis has drawn attention ahead of the sale. The estimate is a pre-sale expectation rather than a result, and whether bidders in the room weigh those 106 miles above everything else the F50 represents will only be settled when the hammer falls.

What recent F50 sales suggest

A different 1995 F50 sold for $12.1 million through Mecum at Kissimmee in January 2026, well under what Broad Arrow expects chassis 107165 to bring given its production position and near-untouched odometer. That gap is the clearest illustration of how much a specific car's history, rather than the model alone, moves the number.

Broad Arrow is citing broader market figures to support its expectations: modern supercars now account for 38 percent of auction sales since 2019, while hypercars have climbed to a 32 percent share over the same stretch, and Hagerty's Ferrari Supercars Index has tracked strong gains for F50-era cars.

The sale runs on October 31 at Wynn Las Vegas in partnership with the Concours at Wynn Las Vegas, with the F50 anchoring a docket built around modern and contemporary exotics. Weaver said the company is bringing "exactly what collectors are looking for" to an event he expects to be "one of our most exciting sales to date".

The F50 joins a run of headline Ferrari consignments hitting the block this season, a stretch that has already included a Ferrari once tied to Steve McQueen drawing its own eight-figure expectations. Broad Arrow has not announced a final sale price, and the estimate remains a guide rather than a commitment.