Low poly Sci-Fi Flying Car

This is a sci-fi flying car made in blender,it has rigged doors, that can open up!

 the boosters are controlled by empties, 

moving the sphere along the x axis controls the booster on the spoiler, 

moving the cone along the x axis controls the boosters at the bottom of the car and moving it along the y axis controls the booster at the hood of the car.