Here is the full list of all 44 My Coloring Book: Transport achievements. It takes around 0-1 hour to unlock all of the achievements on Windows.
Color Yellow Tractor according to example.
Color Firetruck according to example.
Color Ambulance according to example.
Color Bulldozer according to example.
Color Mining Truck according to example.
Color Red Biplane according to example.
Color Yellow SUV according to example.
Color Space Rocket according to example.
Color Green Plane according to example.
Color Strange Car according to example.
Color Blue Train according to example.
Color Green Bus according to example.
Color Cube Car according to example.
Color Yellow Submarine according to example.
Color Red Car according to example.
Color Helicopter according to example.
Color Muscle Car according to example.
Color Police Car according to example.
Color Yellow Sedan according to example.
Color Yellow Hatch according to example.
Color Excavator according to example.
Color Blue Sedan according to example.
Color Red Sedan according to example.
Color Ship according to example.
Color Blue Hatch according to example.
Color Blue Plane according to example.
Color Semi Truck according to example.
Color Ice Cream Car according to example.
Color Red Truck according to example.
Color Yellow Train according to example.
Color Bicycle according to example.
Color Glider according to example.
Color Yellow Car according to example.
Color High-speed Train according to example.
Color Green Beetle according to example.
Color Purple Bus according to example.
Color Green Car according to example.
Color Fatty Rocket according to example.
Color Airliner according to example.
Color Racing Car according to example.
Color Green SUV according to example.
Color Formula 1 according to example.
Color Purple Car according to example.
Color Scooter according to example.