Death Track: Resurrection

You'll probably won't get this when you do the Scenario the first time. Just come back in the Vatican race when you have a fully-upgraded car. The Chamorro car is like a truck, but it's harder to destroy. Just race from behind and fire on everything you see. Enabling the racers' names in the options menu can help to locate your target. It's without a doubt the easiest gold trophy. Be careful - if an opponent destroys him, you'll have to restart the race, since he doesn't respawn.