Well yes the faster the car the greater the kinetic energy. In fact it is proportional to the square of the velocity so increasing velocity has more of an effect than increasing mass. When the car hits anything that energy will be transferred. How, though is a matter for automotive engineers to ponder. I am sure they would like the crumple zones to absorb as much as possible. The details of such a collision with a tree have many variables. The angle of collision, the density of the tree, the depth of the root ball etc.
