I was about to park in car space in a parking lot. Instead of stopping in the car space, it has accelerated suddenly into the lawn in front of the car space. Tried to stop and it accelerated again and then hit the tree. The left front part of the model Y is damaged and is still in the body shop even after more than a month. I thought the only explanation is I have pressed accelerator instead of break. But as I think about it, I don't think I pressed the accelerator. It did sudden intended acceleration twice during that incidence.