Here is the full list of all 41 Need for Speed Unbound achievements.
Customize your Driving Effects
Fully upgrade your Lakeshore Online garage
Customize your clothing
Smash all bear collectibles
Escape a Heat 5 cop chase
Complete Qualifier 1
Complete Qualifier 2
Complete Qualifier 3
Complete the Grand
Complete the prologue
Break all billboard collectibles
Collect all street art collectibles
Get 3 stars on all Speed Run activities
Get 3 stars on all Long Jump activities
Get 3 stars on all Drift Zone activities
Get 3 stars on all Speed Trap activities
Collect all collectibles and get 3 stars on all activities
Bank $75,000 during one session
Earn $1,000,000 in story mode
Score 250,000 during a Takeover event
Score 200,000 during a Takeover event
Complete 30 street races in story mode
Complete 10 Takeover events
Fully upgrade your story garage
Escape a Heat 5 cop chase in an A+ car
Take down 5 cops within a single session
Escape 50 cop chases
Complete a Lakeshore Online playlist with 7 other players
Win a Tier B Lakeshore Online playlist
Win a Tier A Lakeshore Online playlist
Win a Tier A+ Lakeshore Online playlist
Win a Tier S Lakeshore Online playlist
Win a Tier S+ Lakeshore Online playlist
Complete 25 Lakeshore Online playlists
Own 10 vehicles in your story mode garage
Own 10 vehicles in your Lakeshore Online garage
Reach 200MPH in story mode
Drive a total of 100 miles in story mode
Apply a custom wrap to your ride
Use max Burst Nitrous 5 times during Lakeshore Online events
Use max Burst Nitrous 5 times during story mode events