Raptor Car

This is my futuristic concept of a flying car.When switched to flying mode a three wheel support arises from the bottom while the present four wheel system becomes horizontal by rotating the central shaft.The propeller built into the wheel does the flying job and can be suitably directed to control the flying direction.Though the model has not much detail it would be refined in the upcoming models. I started modeling in Creo just 1 month ago and tried my best to design this model and render it.Please do suggest your ideas.