Thank you for your reply !
First of all, the 3d model for the engine is not the good one. I simply take a 4 cylinder model I had and made some modification to represent the 4G63T. When we will buy the engine we will be able to draw it and place the turbo at the right place. We take this engine over the subaru because it's easier and cheaper to get here.
The step angle of the front suspension is for rise the roll center near the center of gravity. The car will roll a lot less than if the roll center is far from the center of gravity.
For the weight distribution we estimate it at 35% at the front an 65% at the rear. The image below show the distribution in function of the acceleration. When the car accelerate, the most of the weight are on the rear tire, but at braking, the distribution are very close.
The car look very high mainly because of the perspective view. The fact I'm 6'4" doesn't help either. The seat aren't accurate I think, because when we put a dummy in the car, the head are very close to the top. Here the comparison with others cars.
The accessibility can definitely be improve, we didn't start to think of the ergonomic sooo..