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