Here is the full list of all 45 F1 2015 achievements. It takes around 25-30 hours to unlock all of the achievements on Windows.
Complete 50 online races.
Complete an online race in the Hardcore Hopper.
Complete 25 online races.
Drive a total of 78 laps at Monaco in Pro Season mode.
Drive 500 laps on European tracks in any game mode.
Complete 200 laps in Quick Race mode.
Stay out in 1st place for 150 laps in Quick Race mode.
Spend 180 minutes in total track time at Silverstone.
Set 50 clean laps at Sochi in Time Trial in a Marussia.
Spend at least 600 minutes out on track.
Win an online race.
Win a race in Quick Race, Championship Season and Multiplayer mode.
Set 50 clean laps in a Sauber on any track in Time Trial.
Set 30 clean laps at Singapore in Time Trial.
Win a race on the final lap, coming from behind.
Set 50 clean laps at the Red Bull Ring in a Red Bull in Time Trial.
Set 100 clean laps in Time Trial on any combination of tracks.
Set 50 clean laps in a Williams on any track in Time Trial.
Set a clean lap time for all circuits in Time Trial.
Drive at least 20 laps on a track in each continent, in any game mode.
Win the race from 22nd place on the grid in the 2014 Championship Season.
Set a lap time at 5 different circuits in Time Trial in the wet.
Take 10 poles in Quick Race mode.
Complete 50 clean laps in Quick Race mode.
Achieve the most poles within a Championship Season.
Win the Drivers' Championship in Championship Season on any difficulty.
Win the Constructors' Championship in Championship Season on any difficulty.
Get 14 wins in a single Championship Season to beat Michael Schumacher's record of 13 wins.
Win 3 races at Monaco in Quick Race mode.
Set a lap time at 5 different circuits in Time Trial in the dry.
Score 75 Constructors' Championship points in Quick Race mode.
Complete a Championship Season race without colliding with another car or object.
Complete 5 online races.
Reach 100 points in an online championship.
Complete an online race in the Standard Hopper.
Set a time at a Time Trial Event.
Complete an online race in the Beginner Hopper.
Meet or exceed a race objective given to you from the team in Championship Season.
Get a podium in Championship Season.
Take pole, win the race, set the fastest lap and lead every lap in a Championship Season weekend.
Take pole position in Championship Season.
Finish ahead of your team mate in a practice session in Championship Season.
Load a Mid-Session Save.
Complete a race in Pro Season mode.
Place in the top 16 in qualifying in Pro Season mode 5 times.