WRX stands for “World Rally eXperimental”. It’s the name given to the car that came out of the collaboration between the Prodrive British racing team and Subaru in the 1990s. The main difference between the WRX and a regular Impreza is the turbocharged engine. But you also get more of everything, including all-wheel drive and a stiffer suspension.
The interior has the rally-racing touch too: Different gear knob, different pedals, different dashboard and RPM gauge.