Here is the full list of all 34 Road Rage trophies - there are 22 bronze, 5 silver, 6 gold and 1 platinum.
Earned all trophies
Hit 1000 pedestrians
Hit 500 pedestrians
Finish all story missions
Collect the Farmlands Collectable
Collect the Forest Collectable
Collect the Ruscago Airfield Collectable
Buy 5 bikes
Collect the Port Hamc Collectable
Collect the Downtown Collectable
Complete upgrade a bike
Collect the Subtroit Collectable
Collect the Chitaly Collectable
Buy 5 weapons
Buy a new bike
Buy 3 weapons
Hit 50 pedestrians
Finish a sprint mission
Outsmarted the cops in escape
Finished a arcade mission
Hit a pedestrian
Buy 5 bike parts
Buy 3 bike parts
Buy a bike part
Spend more than 10000
Spend more than 5000
Upgrade a bike
Buy a weapon
Spend more than 2000
Spend your first money
Win your first circuit race
Finish a stunt mission
Win your first eliminator race
Finished a time trail