Subaru's WRX, Ascent, and Outback are the only new US models with a turbocharged flat-four boxer engine — and the WRX also ...
How boxer engines work, why they’re not just “flat” engines, and a 120-year evolution traced from the 1899 Benz to the latest Porsche and Subaru boxers. Boxer engines feature flat, opposing pistons ...
Subaru's understated flat-four boasts quite an impressive reliability streak.
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