In 1968, Subaru introduced the diminutive 360 as an inexpensive economy car: “Cheap and Ugly” (Subaru’s words, not mine). Only seven years later, the brand made a big move with the launch of its 4WD ...

If an engine has four cylinders, chances are they’re arranged in-line—unless that engine was made by Subaru, of course. A boxer-four is second only to all-wheel drive as a Subaru calling card. But the ...