Hello,
i read that you can use the A7 Physic in your Project, but how?

see ya

manual -> phent_settype
There is all you need.

Furthermore there is a good demo about vehicle physic. It is an advanced demo that show the power of A7 physic engine! :-)

Wanted to make a video tutorial, but i'm just a beginner when it comes to physics. So maybe if one of the more advanced programmers let me ask 5/10 questions, I can finish a tutorial showing the basic of using physics in GameStudio. In the meantime check the car tutorial as suggested, also take a look at the physics demo in the Lite-C workshops. And last, but not least read William's tutorial here.