The door to a new Subaru WRX STI has officially cracked open, as Subaru has revealed a Japan-only WRX STI S210 Prototype at ...

Only 500 copies of the 296-hp WRX STI will make it to production, and it's unclear if any are destined for America.

The WRX STI S210 is the most powerful version of the current-generation model with 296 hp from the upgraded 2.4-liter boxer ...