Here is the full list of all 49 F1 2014 achievements worth 1,000 gamerscore. It takes around 30-35 hours to unlock all of the achievements on Xbox 360.
You earned every Bronze medal in the very easy set in Scenario Mode.
You completed your first race in Career.
You completed your first 25%+ distance race.
You have performed a Mid-Session Save.
You were recommended for the hardest preset Difficulty in the Evaluation Test.
You completed Season Challenge.
You have taken pole position in One-Shot Qualifying.
You have beaten your first rival in Season Challenge.
You passed all of your objectives over a race weekend in Season Challenge.
You finished a race using a custom car setup.
You won your first race in Season Challenge.
You completed your first race in Season Challenge.
You have set a valid lap time in One-Shot Qualifying.
You have earned a medal in Scenario Mode.
You set a time in a Time Attack scenario.
You have set a clean lap time in Time Trial.
You used a Flashback.
You have successfully completed the Evaluation Test.
Win a race with all driver assists disabled.
Finish a race at every circuit.
Beat four rivals in one season in Season Challenge.
Stay with the same team through the whole season in Season Challenge.
Return to your starting team in Season Challenge.
Race for five different teams in Season Challenge in a single season.
Win the Drivers' Championship in Season Challenge.
Set the fastest lap time in every session of a long race weekend in Career.
Win the Drivers' Championship in Season Challenge on hard difficulty.
Win your first race in Career.
Take pole position in Career.
In Career, qualify last, but finish first.
Move to another team mid-season in a long Career.
Complete a Short Season in Career.
Win the Drivers’ World Championship in a Short Season Career.
Complete a Medium Season in Career.
Win the Drivers’ World Championship in a Medium Season Career.
Complete a Full Season in Career.
Win the Drivers’ World Championship in a Full Season Career.
Win the Constructors' Championship in Career.
Set clean lap times at 10 different circuits in Time Trial.
Set a time in all of the Time Attack scenarios.
Earn a Gold medal in all of the Time Attack scenarios.
Earn every Bronze medal in the easy set in Scenario Mode.
Earn every Silver medal in Scenario Mode.
Earn every Gold medal in Scenario Mode.
Complete a race in Split Screen.
Complete your first race online.
Complete 25 online races.
Complete 50 online races.
Win the Drivers' or Constructors' Championship in Co-op.