Here is the full list of all 50 Blur achievements worth 1,000 gamerscore. It takes around 40-50 hours to unlock all of the achievements on Xbox 360.
Unlock Legend Mode
Beat Drayke in his One-on-One
Prove yourself by completing Rival Demands in career
Beat Natalya in her One-on-One
Master the Shunt Power-up
Master the Bolt Power-up
Master the Barge Power-up
Master the Mine Power-up
Race at each location in the game
Have a complete experience of Friend Challenges
Choose any Friend as a Rival from the Single Player Leaderboards
Beat Khan in his One-on-One
Beat Shannon in her One-on-One
Wreck your first Rival in a One-on-One
Unlock Shannon's One-on-One
Win a race using a custom mod setup
Share your first Blur experience on Facebook, Twitter or Xbox LIVE
Beat a Rank 50 player
Become an Award-winning racer
Wreck a Blur developer on Xbox LIVE, or anyone with this Achievement
Finish a race 0.1 seconds or less ahead of another player online
Earn your first Fan Target
Complete your first Fan Run
Wreck your first car
Evade or destroy your first incoming Power-up
Beat Rhymer in his One-on-One
Master the Nitro Power-up
Explore Blur's locations
Master Destruction events
Master Checkpoint events
Master the Shock Power-up
Beat Talon in his One-on-One
Master the Repair Power-up
Master Race events
Master Fan Demands
Beat the twins in their One-on-One
Master the Shield Power-up
Master Fan Runs
Beat Carver in his One-on-One
Show that you can bring the fight to One-on-Ones
Earn all Primary Lights in M.Haruna Checkpoint without damaging your car
Visit www.blurgame.com for more info
Hit set speeds in class A, B, C and D cars
Complete everything in the singleplayer game
Earn every Primary Light on Hard difficulty
Master the Blur Challenges
Win a race in multiple playlists
Stand out from the crowd with car resprays
Earn the Motor Mash sticker
Win a race in 4 player Split Screen