Full review: br br Four Imprezas, a total of 1,184bhp and a mile-long strip of tarmac... the battle of the hardcore Subaru special editions is on! br br A manic chorus of turbo engines is followed by a screech from the tyres as our competitors catapult off the line. And with 119bhp more than the next most powerful car here, the new Cosworth-tuned Impreza this should find this a walk in the park -- especially given that its rivals today are 10 years older.