Interior revisions and two new appearance-enhanced models highlight 2005 for the smallest Subarus. Imprezas come as sedans, wagons, and as the SUV-flavored Outback wagon. Each has all-wheel drive, antilock 4-wheel disc brakes, and a horizontally opposed 4-cyl engine. The 2.5 RS sedans and wagons and the Outbacks have 165 hp. The WRX sedan and wagon are turbocharged for 227 hp and have a sport suspension, functional hood scoop, and special seats and trim. The WRX STi sedan has 300 hp and upgrades to suspension, brakes, and steering over regular WRXs. The STi comes only with 6-speed manual transmission; all other models have a 5-speed manual or optional 4-speed automatic. Front head and torso side airbags are standard for WRX and STi, unavailable otherwise. The STi has 17-inch wheels, all other models have 16s. For '05, Imprezas get upgraded interior materials, a new center console and door panels, and exchange a 4-spoke steering wheel for a 3-spoke design. WRX and STi gain automatic climate control and, along with the 2.5 RS Sport, an in-dash CD changer. New for '05 is the 2.5 RS Sport sedan with WRX-style lower body trim, seats, steering wheel, and audio system. Also new is the Outback Sport Special Edition with rear spoiler, interior upgrades, and CD changer.