Subaru Will End Boxer-Engine Sales in Europe, Going Electric-Only by 2027

Subaru will stop selling combustion-powered and mild-hybrid boxer-engine cars in Europe by the end of 2027, leaving the region with an electric-only lineup. The confirmed withdrawal removes several familiar models from European showrooms but does not mark the global end of the engine layout most closely associated with the brand.

The transition will unfold in stages. The Outback is scheduled to leave the European market before the end of 2026. The Forester, Crosstrek and Impreza will follow during 2027, including the mild-hybrid e-Boxer versions of those three models. By the end of that process, European buyers will no longer be offered a new Subaru with an internal-combustion engine.

The deadline aligns with the European Union’s Euro 7 regulatory timetable. The rules apply to newly approved types of passenger cars and light commercial vehicles from November 29, 2026, and to new vehicles in those categories from November 29, 2027. Subaru has linked its regional decision to that second deadline.

Euro 7 creates a broader certification burden

For passenger cars, Euro 7 largely retains the existing Euro 6 limits for major exhaust pollutants. Its engineering and certification effects extend further, however. The regulation covers smaller exhaust particles, brake emissions, tire abrasion, real-driving testing, onboard monitoring and longer-term compliance. It also establishes battery-durability requirements for electric and plug-in hybrid vehicles.

A manufacturer therefore must evaluate more than whether an existing engine can meet a single tailpipe limit. It must consider the testing, monitoring, documentation and product-development work needed to keep each vehicle and powertrain compliant through the applicable service period. Those fixed costs are easier to distribute across a high-volume model range than across a small regional fleet.

Subaru’s position in Germany illustrates that scale problem. The company registered 3,978 vehicles there in 2025, down from 4,510 in 2024. Volkswagen delivered 560,796 vehicles in Germany during the same year. The comparison does not measure the cost of certifying an individual Subaru, but it shows why investing in another European compliance cycle can carry a much higher cost per vehicle for a small-volume brand.

Subaru also is not planning to fill the gap with the full-hybrid Crosstrek and Forester offered in the United States. A full hybrid could reduce fuel use compared with a conventional model, but it would still contain a combustion engine and remain subject to the corresponding approval and lifetime-emissions requirements. Mild-hybrid e-Boxer models face the same basic issue because their electric assistance does not eliminate the engine or its regulated emissions.

Europe loses the boxer, not the rest of the world

The regional retreat arrives 60 years after Subaru introduced its first boxer four-cylinder engine. The 977-cc flat-four in the 1966 Subaru 1000 produced 55 horsepower. Subaru added all-wheel drive in 1972, and the combination of a horizontally opposed engine and driven front and rear axles subsequently became a defining part of the company’s mechanical identity.

That architecture is not being abandoned worldwide. Subaru sold 643,591 vehicles in the United States in 2025, compared with 667,725 in 2024, and combustion-powered models remain important there. The Forester alone recorded 156,476 U.S. deliveries through September 2026, an increase of 17.6% from the corresponding period a year earlier.

Subaru also recently patented a hollow camshaft containing a free-spinning internal weight intended to reduce vibration and rotating mass. A patent does not guarantee production, but it indicates that the company continues to investigate improvements relevant to combustion-engine hardware rather than treating the technology as universally finished.

European Subaru dealers will instead rely on battery-electric products. In Germany, the company currently offers the Solterra, Uncharted and E-Outback. Those vehicles still must satisfy Euro 7 provisions covering brake particles, tire abrasion, energy monitoring and battery durability, but they avoid the exhaust-emissions certification work attached to the departing boxer range.

The result is a regional product split rather than a global powertrain shutdown: after six decades of boxer-engine development, Europe will lose the layout by the end of 2027 while larger markets continue to support it.

By Thomas Caldwell — AMI’s senior editor for mechanical and mobility engineering, covering vehicle electronics, systems integration, electrification, chassis systems, propulsion, and safety policy.