Here is the full list of all 17 Motor Rock achievements.
Gain the victory in 25 races
Try to win the race without firing
kills more than three opponents on the last lap
Kills opponents 100 times
Just die :)
Open the next planet
Kills opponents 50 times
Kills opponents 25 times
Gain the victory
Just unlucky before the finish
Gain the victory in 100 races
Learn who developed the game
Gain the victory in 50 races
Complete the game on the start machines
Complete the game on Easy difficulty
Complete the game on Normal difficulty
Complete the game on Hard difficulty