On thursday march 16th approx around 6 pm, i was driving back home from work. when i tried to stop the car at a stop light (driving approx 40-45 miles/hr speed on a straight road) by pushing the break pedal the vehicle slowed down, but failed to stop completely and continued to roll autonomously at a slower speed. as i continued to push the brake, engine revved up twice spontaneously. i immediately shifted the gear to park and the vehicle stopped. approx a minute later i shifted back to drive and drove the car home. next morning i drove the car to audi dealership and they ran the vehicle diagnostic and identified a faulty abs control module which has since been replaced. since it involved brake failure and spontaneous acceleration i am submitting the compliant to to nhtsa. i have also sent an email to audi usa today regarding this. i just took the car back from service today and i will continue to observe for any issues and update nhtsa and audi usa. please feel free to contact me should you need any additional information.