In 2026, Subaru celebrates the 60th anniversary of introducing its first boxer four-cylinder engine in 1966. The unit had modest beginnings, with a 977-cc flat-four making 55 horsepower to power the Subaru 1000. Since then, the flat powertrain layout has become inextricably linked to the brand. All-wheel drive, the brand’s other hallmark, arrived in 1972.
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