Sudden Unintended Acceleration of the vehicle when slowing to park vehicle. This has happened on 2 occasions- both scenarios the same: slowing and turning left into a parking space, foot on the brake, almost to a complete stop and the vehicle suddenly accelerates out of control. the 1st time into a tree, the 2nd time into a parked/unoccupied vehicle. The brake was applied w/o response, the vehicle would not stop. I am certain my foot was not on the gas. Fortunate no one was injured.