Here is the full list of all 37 WRC 5 achievements worth 1,000 gamerscore. It takes around 20-25 hours to unlock all of the achievements on Xbox One.
Finished all the Special Stages in the game in Quick Stage mode.
Finished at least one Special Stage in each rally in Quick Stage mode.
Finished a Special Stage in Offline Multiplayer mode with at least two players.
Finished 10 Special Stages online.
Finished 5 Special Stages online.
Finished a Special Stage online.
Won a Special Stage online.
Finished a WRC season in first place in Career mode.
Won the ADAC Rallye Deutschland in Career mode.
Won the Neste Oil Rally Finland in Career mode.
Won the Rally Sweden in Career mode.
Signed a contract with Volkswagen, Citroën, Hyundai or M-Sport.
Finished a WRC-2 season in first place in Career mode.
Won the Coates Hire Rally Australia in Career mode.
Won the Rally Italia Sardegna in Career mode.
Won the Xion Rally Argentina in Career mode.
Won the Rally Guanajuato México in Career mode.
Tuned a car for the first time.
Won the Wales Rally GB in Career mode.
Finished a Junior season in first place in Career mode.
Won the RallyRACC Catalunya-COSTA DAURADA in Career mode.
Won the Rallye de France - Tour de Corse in Career mode.
Won the LOTOS 72nd Rally Poland in Career mode.
Won the Vodafone Rally de Portugal in Career mode.
Won the Rallye Monte Carlo in Career mode.
Repaired a car for the first time.
Exceeded the repair time budget for the first time.
Used the Snapshot for the first time.
Won a Special Stage in Career mode.
Finished in the top three in a Special Stage in Career mode.
Manually respawned for the first time.
Signed a first contract in Career mode.
Won a Special Stage in any off-line game mode.
Won a Special Stage in Quick Stage mode.
Won a Special Stage in Simulation setting in any off-line mode.
Finished a Special Stage using tyres that aren't adapted to the road surface.
Created a customised driver.