Here is the full list of all 26 Super Toy Cars achievements.
Play a custom track downloaded from the Steam Workshop
Finish the tutorial
Finish 1st in a single player race
Unlock the 3rd episode (B class vehicles)
Unlock the 5th episode (A class vehicles)
Unlock the 7th episode (S class vehicles)
Finish the game in career mode
Finsh all races in career mode 1st
Own all the cars in the game in career mode
Play a local or online multiplayer game
Race a total of 500 miles
Do a drift of more than 500 meters
Drift a total of 42Km
Finish a race drifting and boosting
Win a race without drifting
Earn a total of 500000 credits
Own all the cars with all the unlocks in career mode
Win a race using no power-ups
Use 250 power-ups
Spend 10 minutes boosting
Spend 10 minutes in the air
Step on 10 or more mines in an evade event and win
Finish first in an Evade event stepping on no mines
Collect 100 coins
Take one Replay Screenshot
Buy all upgrades for a vehicle