What is the reason for the bulge in the middle of the rear seat of a car?

1 Answers
SanPatrick
07/30/25 3:35am
Below are the reasons why there is a bulge in the rear seat of a car: 1. To increase the height between the car chassis and the ground, because the chassis of a family car cannot be too close to the ground, which would threaten driving safety. In the early days of German car manufacturing, a beam structure was used, and the most important feature of this structure is that it can ensure the integrity of the car body in a collision. 2. To protect and arrange the exhaust pipe and drive shaft, the rear seat of the car needs to have a certain bulge. The exhaust pipe and drive shaft need to pass through the middle of the chassis, so a groove must be designed to arrange the drive shaft and exhaust pipe. The design of the groove strengthens the hardness of the chassis and improves the overall safety of the vehicle. 3. Cars with a bulge in the middle of the rear seat have relatively higher body strength than flat-bottomed cars, which is considered for safety to protect the lives of passengers.
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