The Subaru Outback straddles the tall wagon / crossover category, delivering exceptional cargo space and a comfortable interior in a bundle with solid ground clearance and standard all-wheel drive. The EyeSight safety feature is also offered with the Outback. The Subaru Outback starts out with a 2.5-liter, 173 horsepower four-cylinder engine under the hood, but it can be upgraded to a more robust 256 horsepower, 3.6-liter six-cylinder engine that is also good for 247 lb-ft of torque.