MPG-o-Matic 2012 Subaru Impreza 2.0i Sport Review Summary: The 2012 Subaru Impreza is the most fuel-efficient AWD vehicle on the highway in America, bar none. The closest challenger for the Impreza’s remarkable 36 miles per gallon (MPG) are the 2012 BMW 528i xDrive , 2013 Audi A4 quattro, and 2013 Audi A5 quattro at 32 MPG … all of which are significantly more expensive than the Impreza’s starting MSRP of $17,495.
The 2012 Subaru Impreza is powered by a sequential multi-port fuel injected DOHC 2.0-liter Boxer (horizontally opposed) four-cylinder engine that produces 148 horsepower (HP) and 145 foot pounds of torque. The Impreza is available with a five-speed manual transmission or CVT (Continuously Variable Transmission) automatic, as either a five-door hatchback or four-door sedan, but only in All-Wheel-Drive (AWD). Manual-equipped Imprezas use Continuous AWD with a viscous-coupling locking center differential, while CVT-equipped models use Active All-Wheel Drive with an electronically managed continuously variable hydraulic transfer clutch. All 2012 Impreza’s are equipped with the naturally-aspirated 2.0 liter Boxer. The WRX and WRX STI are fitted with the 2.5-liter turbocharged Boxer.