The Subaru Legacy and Outback have undergone a few modifications for 2018 to make them quieter and more efficient. There's a redesigned grille and new bumpers, too. Engine-wise, the 2.5L four cylinder produces 175 horsepower, while the 3.6L six cylinder generates 256 horsepower. A manual gearbox is no longer available in 2018. The Outback is a wagon version of the Legacy, with a higher-riding suspension that enhances the capabilities of its all-wheel drive system.