B pillar between the front and rear seats cockpit, extending from the roof to the bottom of the car.
1.B column effect
B pillar to support a roof and major front and rear doors, and assembly such as belts, wires and other components. When the vehicle is hit from the side, B pillar can also play a role in protection of occupants.
Read-pillar 2.B
Thanks to the carbon fibers, high-strength alloy material, other high-tech applications in the vehicle body, such as BMW now i3, C3 Citroen other models B-pillar has been discarded, to ensure safety while expanding the cabin space, and the passenger on and off more convenient.