Here is the full list of all 14 Car Puzzler achievements.
Successfully scanned a level
Reach 10000 steps by finishing levels
Finished 100 levels
Finished all campaign levels
Finished all campaign levels with timer and night mode on
Finished 20 levels
Create 10 levels in editor
Create a level in editor
Taken more than 200 steps to finish a level
Finished a level with less than 2s left (timer mode)
Finished one level
Finished a level in night mode
Finished a level in under 10s (timer mode)
Finished a level with timer enabled