Some Blur cheats, tips, and tricks.

Unlockable: Avatar Awards
The following Avatar items can be unlocked by performing the actions below.

Friend Rechallenge Tee - Beat a friend's rechallenge
Legend Tee - Unlock the first Legend Rank in mutiplayer
Sticker Tee - Complete the Sticker Book
Wreck Tee - Get the "Been there, got the T-Shirt" Achievement (Wreck your first car)

Unlockable: Blur Gamer Pic
The following pics will be unlocked by performing the actions below.

Blur Gamer Pic - When a race in first place
Cheat: Cheat List
Enter the following codes for the desired effect.

Go to the Multiplayer Car Showroom, highlight the BMW Concept 1 Series car and enter
LT, RT, LT, RT - Chrome BMW

Go to the Multiplayer Car Showroom, highlight the Bronco and enter
LT, RT ,LT, RT - Fully upgrade the Ford Bronco
Plz REP ME PLZ