Okay, I stand corrected. He was accelerating before the guy hit his car. I do wonder if there was an attack prior to that that caused him to accelerate.
Why? Why do you wonder that? There's certainly no indication in the full video that there is a large crowd around his car after he's already accelerated to an unsafe speed at the start of the full video. There's simply no reason to believe he could have felt his life was in danger before accelerating. He purposely went down a crowded street when he had an opportunity to turn before it.
You and everyone else (so that question is not just for you) must ask yourselves that question (why believe he was attacked before the video) in an honest search for the truth about this situation. Remembering always sometimes the truth is not what we want to hear (or know).