Here is the full list of all 50 Need for Speed: Carbon achievements worth 1,000 gamerscore.
Beat all Gold Challenge Series Events
Beat all Silver Challenge Series Events
Beat all Bronze Challenge Series Events
Beat 15 Challenge Series Events Online
Complete Career Mode
Complete Career Mode and own every race
Beat 5 Challenge Series Events Online
Get a 6 game winning streak in Ranked Online games
Get a 5 game winning streak in Ranked Online games
Win a Online race at York Road after giving your opponents a 10 second head start
Play 50 games Online
Reach Online XP Level 9
Cross the finish line in reverse to win a ranked Sprint race
Catch Canyon Craze by playing an Online Canyon Duel with an infected player
Catch the Carbon Plague by catching all 3 other viruses
Catch the Pursuit Pandemic by playing an Online Pursuit Tag game with an infected player
Catch Knockout Fever by playing an Online Pursuit Knockout race with an infected player
Score 500,000 points in a Drift event
Reach Online XP Level 6
Unlock 36 Cars
Reach Online XP Level 4
Hit 230 Mph in a Speedtrap
Earn 1,000,000 cash in Career Mode
Immobilize a police Rhino while in Career Freeroam
Avoid 5 spike strips in a police pursuit while in Career Freeroam
Cause 200,000 Cost to State in a single pursuit while in Career Freeroam
Escape after a 12 minute police pursuit in Career Freeroam
Fill your Career Garage with only Exotic Cars
Fill your Career Garage with only Tuner Cars
Fill your Career Garage with only Muscle Cars
Get a 4 game winning streak in Ranked Online games
Get a 3 game winning streak in Ranked Online games
Reach Online XP Level 2
Reach Online XP Level 1
Finish an Online Ranked race or Online Challenge Series race
Finish an Online race during a Race Week
Win a Canyon Duel with no collisions
Ram 100 police vehicles in a single pursuit while in Career Freeroam
Disable 50 police vehicles while in Career Freeroam
Win 50 Free Roam Challenges in Career Mode
Completed every Offline and Online Reward Cards
Play 100 games Online
Beat an EA Moderator in an Online game
Reach Online XP Level 13
Reach Online XP Level 18
Reach Online XP Level 23
Reach Online XP Level 29
Reach Online XP Level 35
Reach Online XP Level 42
Reach Online XP Level 50