Unintended Aceleration Veheicle experienced normal stop with no anomaly. Upon release of brakes, experienced reported Wide Open Throttle" Brakes were ineffective. Vehicle accelerate thru intersection striking guardrail with significant damage. WOT stopped by shutting of engine. Vehicle currently in repair. Reported event to local dealer service dept, Insurance Rep and Ford referencing 2010 Class Action Lawsuit for similar events, All claim no knowledge of such an event. Vehicle had no previous reports of similar events