Here is the full list of all 49 F1 2018 achievements worth 1,000 gamerscore. It takes around 40-50 hours to unlock all of the achievements on Xbox One.
Used a Flashback
Took your first win in any full season
Took pole position
Accepted a contract with Ferrari, Mercedes or Red Bull
Achieved a podium finish in any game mode
Completed a valid qualifying lap using the Hotlap ERS deployment mode
Used the Multi Function Display to adjust your set-up while on track
Enter Photo Mode
Accept a contract with Toro Rosso, Williams or Sauber
Accept a contract with Renault, Haas, McLaren or Force India
Complete a Full Season of 21 Races in Career or Championships Mode
Complete your first Practice Programme
Complete a lap at Hockenheim
Apply all vehicle upgrades from one department
Complete a race using four different tyre compounds
Finish a race with a missing gear
Win the Formula 1 Drivers' Championship
Win the Formula 1 Constructors' Championship
Complete any race with all assists disabled
Finish on the podium at Singapore in Fernando Alonso's McLaren
Set the fastest time in all 3 Practice sessions, take pole position and win the Grand Prix
With manual gears enabled race a car with a non sequential gearbox
Generate enough energy through ERS to power a light bulb for a year
Obtain a rank of 25 Online
Obtain a rank of 11 Online
Finish a race with a fully depleted battery
Finish on the podium after being eliminated in Q1
Set a clean lap in any Time Trial
Receive a promotion to first driver
Achieve a reaction time of less than 0.16 Seconds off the grid with race starts set to manual
Win the Drivers' Championship at USA, or earlier
Obtain 41 podium finishes in Career Mode
Win the Spanish Grand Prix with Kimi Räikkönen
Set a valid Time Trial lap with a set up taken from a rival ghost
Complete a race in a classic Lotus at the Circuit of the Americas
Earn maximum Resource Points during Practice
Finish in the points at Le Castellet in a Renault
Obtain a Skill Rating in Multiplayer
Obtain a Safety Rating of 'A' in Multiplayer
Complete a race at every short track
Politely ask your Race Engineer to stop talking to you out on track
Win a 25% + distance race against 'Ultimate' AI opponents
Complete a Race in an Online Championship
Obtain a gold medal in a championship
Win a total of 4 Online Races
Achieve a perfect result in a Practice Programme in wet weather
Lose an upgrade due to a regulation change
Negotiate a new contract
Obtain an upgrade at a reduced cost due to good morale