Here is the full list of all 11 Drift Zone achievements.
Unlock all cars
Get through the whole season obtaining 3 stars
Unlock the second season
Unlock all seasons
Get through all levels obtaining 3 stars with track
Get through all levels obtaining 3 stars with circuit drift
Complete all bonus events
Get 4,000 reputation points
Get 8,000 reputation points
Unlock all cars and upgrade each one to “professional” level
Get through all levels obtaining 3 stars