The contact owns a 2016 Ford Mustang. The contact stated that with the transmission in the reverse position and while reversing from a parking space, the vehicle suddenly experienced unintended acceleration, reversed, and crashed into a second vehicle. After shifting to the drive position, the vehicle immediately accelerated forward causing the driver to lose control of the steering and crash into a tree. During the incident, while pressing the brake pedal the vehicle did not stop and after crashing head-on into a tree the airbags did not deploy. The driver sustained an injured ribs which did not require medical treatment. A police report was taken at the scene and the vehicle was towed away. The contact indicated that five other parked vehicles were damaged during the incident. The cause of the failures was not determined. The manufacturer and local dealer were not yet contacted. The failure mileage was 43,000.