Here is the full list of all 20 Asphalt 8: Airborne (Windows) achievements worth 200 gamerscore.
Fully upgrade 3 cars
Acquire 10,000 credits during a single race
Complete all seasons
Fully upgrade one stat of any car
Total 10 minutes of air time!
Beat Season 1
Win a race without using Nitro
Have 50 Stars
Perform 20 Perfect Nitro boosts
Drift 10 km
Come in last place
Knock down the same car 5 times in a single race
Execute 25 Knockdowns
Buy your first car upgrade
Earn 10 medals during a race
Get 1st place
Buy a new car
Drift 1 m
Have 10 cars
Fully upgrade 1 car