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Subaru tests in-house EV technology, moving away from Toyota partnership

Electrek reports Subaru showed a prototype EV with in-house electronics and lighter batteries, with some technology due around 2029.

The short version

  • Subaru is developing its own in-house EV technology for next-generation vehicles, breaking from its Toyota partnership.[Electrek]
  • The Subaru-Toyota partnership, formed in 2024 to co-develop four electric SUVs each by 2026, was meant to share costs and manufacturing space.[Electrek]
  • A camouflaged prototype shown north of Tokyo has all-wheel drive rated at 509 horsepower, and Subaru says its motors are 30% more efficient than the industry average.[Electrek]
  • Executives say some of the new technology will begin rolling out around 2029, but no specific launch date was given.[Electrek]

Key facts

  • Subaru is testing in-house technology for next-generation EVs, moving away from its Toyota partnership.[Electrek]
  • Subaru and Toyota planned in 2024 to co-develop four new electric SUVs each by the end of 2026, including the updated Solterra and bZ4X.[Electrek]
  • The partnership was designed to share development costs and manufacturing space to cut costs and speed up development.[Electrek]
  • A camouflaged test mule with an all-wheel-drive powertrain has a combined 509 horsepower (380 kW), according to the report.[Electrek]
  • The battery pack uses 4,000 cylindrical Panasonic Energy cells and is 24% lighter than the previous pack.[Electrek]
  • Subaru is developing an in-house integrated ECU that will support over-the-air updates and its EyeSight driver assistance system, and plans a custom AI chip with Advanced Micro Devices.[Electrek]
  • Executives say some of the new technology will begin rolling out around 2029, without a specific launch date.[Electrek]

What remains uncertain

  • No specific launch date was disclosed, so the around-2029 rollout is an executive indication rather than a confirmed schedule.[Electrek]
  • Efficiency, power, and battery figures are company claims, including the 30% efficiency claim against the industry average, and the reporting shows no independent verification.[Electrek]
  • Only Electrek is reporting this event, so the details have not been confirmed by other outlets.[Electrek]

Sources

Outlet counts describe coverage, not independent confirmation. Reports may share a wire service or original source.