Subaru debuted the turbocharged WRX performance variant of the third generation series Subaru Impreza alongside the mainstream naturally aspirated models on 2 April 2007. For this generation, most markets adopted the abbreviated name "WRX", although the Japanese, North American and UK markets retained the full "Subaru Impreza WRX" title. There is no on board programming procedure for the Subaru WRX. Special equipment is required in order to program the keyless entry remote fob smart key.