Here is the full list of all 39 Crash Time 4: The Syndicate (GFWL) achievements worth 1,000 gamerscore.
Won 20 ranked online races.
Driven a race on every track in the game.
Won 5 ranked online races.
Won 20 ranked online checkpoint races.
Won 5 ranked online checkpoint races.
Won 20 ranked online deathmatches.
Won 5 ranked online deathmatches.
Won a deathmatch without dying.
Played a deathmatch to the end without dying.
Won an online event (ranked or standard) in any mode.
30 Laps on off-road track "4x4 Club Circuit (R)".
Won 50 single races.
Driven every car in the game at least once.
Unlocked every car.
Driven 1000 km in the game.
Fell 30 meters.
100% in the Single Player Game Completion stat. achieved.
Unlocked every track.
Finish your career successfully.
100 Cars exploded.
Destroyed 10 enemies.
Caused 1 million damage in one race.
Activated every single informant possible.
Installed every single camera possible.
Level 4 finished.
Trashed 1000 Objects.
Won 10 single races.
30 Laps on racing track "Sprit-Raceway (R)".
Collided 100 times with traffic.
Jumped 100 m.
Driven 280 km/h for 15 seconds.
Driven 200 m backwards.
Level 3 finished.
Totaled your car.
Lost 2 wheels or more at once.
Race without damage.
Level 2 finished.
Lap without damage.
Level 1 finished.