The Impreza's line has grown to the point where you almost need a program to tell the players. There are currently 10 models, both sedans and wagons. All are powered by a variant of Subaru's 2.5-liter horizontally opposed four-cylinder engine. All come standard with full-time all-wheel drive and a manual transmission. A four-speed automatic is optional on most. Safety features on all models include dual front airbags, front side-impact airbags, and seatbelts with pre-tensioners and force limiters for the front seats. ABS comes standard and features four sensors and four channels.The Subaru Impreza is a carryover from 2006.