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