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