The success of the Subaru brand in Australia and New Zealand has prompted Japanese parent company Fuji Heavy Industries to produce a special sports version of the Impreza specifically for the two 'Down Under' markets, writes Donn Anderson. Designed to fill the gap between the two-litre RX model and the turbocharged WRX, the 2.5-litre Impreza RS costs considerably less than the flagship WRX and limited production STi WRX sports versions.