I was making a right hand turn inside the parking garage. Suddenly my car took off full throttle. I sped forward at full speed towards the line of cars on the left then straight ahead a good distance. I thought I was going to die. I was on Level 3, going in to have lab work done which I did have done. This incident happened maybe 30 minutes before they did the lab work so there should be a time stamp on when this occurred. Since it was inside the parking garage I feel confident it was recorded on their video surveillance.