The contact owns a 2010 Ford Focus. The contact stated that while driving at an undisclosed speed, the RMP increased and revved causing the vehicle to crash into an unoccupied vehicle. No warning lights were illuminated. No injuries were sustained. The contact stated there was a minor scratch on the front of her vehicle. A police report was filed. The vehicle was taken to the dealer where it was diagnosed; however, the cause of the failure was not yet determined. The vehicle was not repaired. The manufacturer was made aware of the failure and a case was opened, and advised the contact to call the NHTSA Hotline. The failure mileage was approximately 14,000.