Accordingly, sincethe roofrailgusset is arranged inside of the sideinnerpanelso thatitdoes notinterferewith the curtainairbag, a layout ofthe curtain airbag is advantageous.
Yet the car's body is 25% stiffer than its predecessor because key parts of the frame--like the center post that supports the car body during side collisions and the roofsiderail that connects the sides of the roof--are made of ultra-high-strength steel created through a process called hot stamping.