From 1992-2014, Subaru marketed the WRX as the "Impreza" WRX. This name denoted that the WRX was based on the standard Impreza, but with rally inspired features like turbocharging and stiffened suspension. However, starting in 2015, Subaru dropped the Impreza name from the WRX and WRX STi lineup. Apparently, Subaru wanted to differentiate the WRX completely from the Impreza line as a new “sporty car.” So starting in 2015, they began calling it just the Subaru WRX. Interestingly, it still retains the same styling base as the standard Impreza.