Why is there a bulge in the middle of the rear row of the car?

The middle bulge in the rear row of the car is mainly caused by the space occupied by the car row and the drive shaft, which is more common in the car, and the car with the drive shaft is generally a front-rear drive car or four-wheel drive vehicle. Rear-wheel drive vehicles and four-wheel drive vehicles have more protrusions than front-wheel drive vehicles, because the drive shaft + exhaust pipe of rear-wheel drive vehicles occupy a large space, while the protrusion height of most front-wheel drive vehicles is not obvious, mainly because the space required to place the exhaust pipe is sufficient.

Why is there a bulge in the middle of the rear of a car? The answer is not as simple as you think.

Cars without protrusions in the rear are: Toyota FJ Cruiser, Toyota Crown.

Lexus, Infiniti.

infiniti, one of the more recommended is the Lexus.

In China, Lexus's success is first and foremost due to its solid business philosophy.

and development strategies. We do not pursue a temporary sales boom, seek a win-win situation for customers, distributors and manufacturers, and unswervingly provide high-quality services that exceed customer expectations.

First of all, the dealer access standards are strict and the network development is healthy. Lexus firmly believes that the luxury experience of customers starts from the 4S store. Lexus is meticulous about the construction and operation management of 4S stores, from reviewing the floor plan of the store.

Specifications for the use of materials and design styles, to clear regulations on the dress style of the staff. It can be said that the attention to detail experience is part of the Lexus luxury experience, and it is also a window for Lexus to convey a warm luxury lifestyle.

Secondly, Lexus took the lead in providing a free maintenance policy in after-sales service, which not only caused the industry to follow suit, but also improved the favorability of end customers to the brand. Lexus provides 4 years or 100,000 km and 6 years or 150,000 km (smart and hybrid models) free warranty and maintenance services, coupled with a stable retail ** system, to bring customers consistent consideration and luxury.

At the design level, Lexus has explored traditional oriental craftsmanship and applied it to its models, such as Lingguang Kiriko, Tsuruha Folded Cloth, Extreme Wood Grain Trim, Washi Texture Finish, Thorn Embroidery and so on. It not only adds a unique charm to the vehicle design, but also makes customers feel the profound spirit of ingenuity in the era of large-scale industrial production.

On a technical level, Lexus was the first to lay out hybrids.

Nowadays, the global and domestic calls for energy conservation and environmental protection are getting higher and higher, and Lexus's choice of hybrid layout can be said to be the most secure and efficient, so far, smart hybrid models account for more than 30% of the brand's sales.

This is because the chassis underneath has to pass through the exhaust pipes, brake lines, or propeller shafts.

There is a law in Europe that the exhaust pipe of a car is too close to the ground, and the high temperatures generated can damage lawns and roads. Therefore, the exhaust pipe must be elevated. In order to achieve this effect, it can be hidden in the concave and convex parts of the rear row with the same chassis height.

Function. 1. As far as the exhaust pipe of the car is concerned, it can be keyed to reduce vibration and noise, and prolong the service life of the exhaust silencer system. The main material of the exhaust pipe is stainless steel.

For the average car, the noise generated by the car's opening can be maddening due to the high amount of stress on the car's exhaust fumes as it leaves the engine.

2. The main working principle is to divide the airflow through multiple channels. These breaches can only rub against each other, causing the velocity of the air flow to gradually decrease. Repeated cycles like this will eventually cause exhaust gases to flow out through the car's exhaust pipe, which will reduce noise!

So as to achieve the effect of reducing the noise of daily use.

The middle bulge of the rear row of the car is to maintain the flatness of the chassis, because the chassis under the car is equipped with an exhaust pipe or a drive shaft, usually the rear-wheel drive car must transmit the power of the engine to the rear wheel through the drive shaft, so the structure needs to have such a bulge. The following is a specific introduction to the relevant content: 1. The car adopts the front and rear drive mode, and the transmission shaft needs to be accommodated in the middle of the car.

The front engine transmits power to the rear wheels through the propeller shaft, if the propeller shaft is too low, it will be easy to support the bottom situation, affect the passage of the car, if the body height is increased and will affect the center of gravity of the body, so it is necessary to make the local floor into a convex shape to protect the propeller shaft of the car, and improve the stability of the car, the passability and the handling. 2. The design of the automobile chassis is low, and the car may be a front-wheel drive car, but it needs to pass through the exhaust pipe, so the middle bulge plays the space for the exhaust pipe design. 3. The car is a front-wheel drive vehicle, but the chassis of the car adopts a rear-drive platform to play the platform, or uses a platform with its own high-end models (rear-drive platform), resulting in a bulge in the middle of the rear row of the car.