Here is the full list of all 63 Car Detailing Simulator achievements.
Finish game
See credits
Get 15 rep
Wash 50 cars
Sell lower price
Water computer
Buy shed car
Repair garage
Buy garage
Pressure washer time
Get 10 rep
Buy all upgrades
Find unique
Use small brush
Use paint meter
Use automatic polisher
Use sponge
Buy all toolkits
Get 5 rep
Wash 10 cars
Return dirty
Long session
Fix trash
Use trash can
Fix seat
Use sand paper
Buy seat toolkit
Use soft brush
Use wide brush
Buy interior toolkit
Buy window toolkit
Buy wheel toolkit
Buy garage upgrade
Get 2 rep
Fix scratches
Use hand polisher
Use flashlight
Buy finish toolkit
Open memory
Wash 1 car
Buy body toolkit
Take photo
Buy one toolkit
Use vacuum
Finish tutorial
Use seat spray
Use window spray
Use rag
Use pressure washer
Buy lights toolkit
Fix body
Fix windows
Fix wheels
Wash 100 cars
Wash 500 cars
Make money
Overtime
Buy auto salon
Fix ufo
Car 1 minute
Find turtle
Stairs ride