Fulfill the required task to unlock the Trophies.

Trophy	How to unlock
Back at Ya (Bronze)	(Multiplayer) Pass the bomb back to a player within 5 seconds of receiving it in multiplayer
Bombtag Bully (Bronze)	Pass the bomb to the same player 3 times in 1 game in Multiplayer
Born Winner (Bronze)	(Single Player) Car Pack Trophies - Win 2 Medium Races with each of the new car
Common Courtesy (Bronze)	(Single Player) Car Pack Trophies - Complete 5 races without crashing
Dented Pride (Bronze)	(Single Player) Win a race after crashing into all opponents at least once
Don't Stop Me Now (Silver)	(Single Player) Finish a race in the top 3 without using the brake or handbrake in single player
Exhibit (Bronze)	Customise Your Car
French Fancy (Bronze)	Car Pack Trophies - Win 5 races using the Peugeot 207 GT
Impossible Turnaround (Silver)	(Single Player) Car Pack Trophies - Win a Hard Race after finishing your 1st lap in last place
L Plates (Bronze)	Finish any race in Single Player
Leader of the Pack (Silver)	(Single Player) Car Pack Trophies - Win 3 Hard Races with each of the new cars
Me First (Bronze)	(Single Player) Finish each lap of a race in 1st position
Minitastic (Bronze)	Car Pack Trophies - Win 5 races using the Mini Cooper 2007
New Breed (Bronze)	(Single Player) Car Pack Trophies - Win 2 Easy Races with each of the new cars
Photo Finish (Bronze)	Finish in first position less than 0.1 seconds ahead of an opponent
Pro! (Silver)	(Single Player) Win a race on Hard
Rolling On Suds (Bronze)	(Single Player) Clean your car in the car wash and finish a race
Scorpion Fight (Bronze)	Car Pack Trophies - Win 5 Races using the Fiat 5 Abarth
Showboating (Silver)	(Single Player) Finish a Single player race whilst reversing over the finish line
Solo Polo (Bronze)	Car Pack Trophies - Win 5 Races using the VW Polo
Speed Demon (Gold)	Complete a lap in less than 37 seconds and finish a race in Single player
Top Dog (Silver)	(Single Player) Car Pack Trophies - Beat the fastest time for a Hard Race in the Records.