The changes could be called evolutionary, with no bold departures, as Subaru gently updates a winning formula in its two most important model lines. Put simply, the Japan-based specialist in all-wheel-drive cars is unwilling to tamper with something that works well.

Most obviously refreshed is the Outback, which gets a taller stance and ground clearance almost as high as a standard SUV. Styling updates for both models, which in engineering terms are closely linked, bring a bolder grille, new bumpers and light clusters. The cabins are upgraded too, with a neater instrument cluster and smart new seat fabrics and accents.

A new version tops the Legacy lineup: the six-cylinder 3.0-liter R trim equipped with a standard 5-speed automatic transmission. Subtly refined body moldings and unique alloy wheels distinguish this 245 horsepower flagship. (That same engine can be found in the Outback, too.) The oddly named 2.5-liter GT spec.B and 2.5-liter GT limited trims continue with the smaller turbocharged engine and a six-speed manual gearbox.

All-Wheel-Drive Stability

Six-cylinder trims in both Legacy and Outback ranges get a new feature called “SI drive.” This allows the driver to choose one of three engine management setting: “Intelligent” offers lower torque and smoother performance—ideal for town driving, or dealing with low-traction surfaces, and providing an improvement of up to 10 percent in economy. Alternatively, “Sport” and “Sport Sharp” settings offer progressively faster throttle responses and better performance for use on the open road.

All models in Subaru’s range continue to have the company’s trademark symmetrical all-wheel-drive systems and boxer engines, making it the only carmaker to fit all-wheel drive to its entire range. Many models come with a simple viscous coupling locking center differential, which mechanically redistributes traction in the event of a loss of traction front or rear. Some models have a more sophisticated electronically managed continuously variable transfer clutch that constantly revises the power distribution pattern between the four wheels.

Subaru officials were also drawing attention to other accolades their company has received, including Legacy and Outback’s strong marks for safety in NCAP and IIHS tests.