The Subaru WRX, originally launched in 1992 as a replacement for the Leone, features flat-four boxer engines and a patented symmetrical AWD drivetrain. It gained fame through rally success, notably with Colin McRae, and has evolved with various performance models, including the STi and limited editions like the 22B. The latest WRX models continue to enhance performance and technology, introducing updates to infotainment and safety systems.