It's all about weight

Hi, I'm extremely enjoying this game so that is like, I spent two thirds of every weekend into it
Anyways, here are my suggestion for the car designer and these are both related to weight adjustment/calculation:
1. Players can choose the material parts by parts like we do in engine designers.
This would be very useful and realistic and practical, because this feature add depth and fun to the car designing.
with this feature, we can adjust weight distribution more easily, like we use aluminum for the bonnet, and the steel for the rest. I think weight distribution DOES matter a lot for car performance.
2. Vents should have weights (reduction).
Vents in car designer should have weight of its own. this means, if attach the vents to the front bumper, we can gain the weight reduction according to the vents surface size.
This also contributes adjusting the weight balance.
What do you guys think about it?

Anyways, here are my suggestion for the car designer and these are both related to weight adjustment/calculation:
1. Players can choose the material parts by parts like we do in engine designers.
This would be very useful and realistic and practical, because this feature add depth and fun to the car designing.
with this feature, we can adjust weight distribution more easily, like we use aluminum for the bonnet, and the steel for the rest. I think weight distribution DOES matter a lot for car performance.
2. Vents should have weights (reduction).
Vents in car designer should have weight of its own. this means, if attach the vents to the front bumper, we can gain the weight reduction according to the vents surface size.
This also contributes adjusting the weight balance.
What do you guys think about it?