Here is the full list of all 18 Project Vroom Vroom Prototype Demo achievements.
Complete your first speed king challenge
Complete your first stunt queen challenge
Complete your first crash king challenge
Reach Level 10 for Speed King
Reach Level 17 for Speed King
Reach Level 4 for Crash King
Reach Level 8 for Crash King
Reach Level 2 for Stunt Queen
Reach Level 5 for Stunt Queen
Color your first car part
Find the Pipe inside the desert
Find the secret Bar on the map
Visit the Speed Kings Castle
Visit the Crash Kings Castle
Visit the Stunt Queens Castle
Build your first gear transmission into your car
Build a car with more than 500kg weight
Build a car with 8 wheels