Here's some screenshots from the game. All the action, flying objects, environmental destruction, car mangling, windscreen smashing, massive explosions, collapsing bridges and competitive racing ARE HERE ON THE PSP FOR THE FIRST TIME EVER.
You can only pickup one Powerup at a time so analyse just which one is the most beneficial for you. The most vulnerable spots on your vehicle are the sides and back. Try to pick off vehicles which are critical (have a red arrow above them).