The automobile wheelbase is the distance between the centerlines of the trajectories left by the wheels on the ground. If the ends of the axle are double wheels, the wheelbase is the distance between the two center planes of the two wheels. The car's track is divided into the front track and the rear track. The front track is the distance between the center planes of the front wheels and the rear wheel track is the distance between the center planes of the rear wheels.

In general, the wider the wheelbase, the higher the driving comfort, but some home-made cars do not have directional assistance. If the front wheels are too wide, their steering wheel will be "heavy," affecting driving comfort. In addition, the track distance also has an influence on the total width, total weight, lateral stability and safety of the car.

The greater the track distance, the more favorable the smoothness of the operation, and also the favorable shape of the body and the spaciousness of the carriage, the better the lateral stability. However, since the track width is wide, the total width and total weight of the automobile are also generally increased, and the problem of sluging to the side of the vehicle body is apt to occur. If the track width is too wide, it will affect the safety of the car. Therefore, the track distance should be compatible with the width of the car body.

In general, the larger the wheelbase, the higher the driving comfort and the more favorable the smoothness of the operation. At the same time, it is also advantageous for the shape of the car body and the spaciousness of the carriage. The lateral stability is better.


The front track and rear track are not necessarily the same.
The equal distance between the front and rear wheels is the best. Off-road vehicle selection.
The front track is more manoeuvrable than the rear track. Household cars usually use this form to help with safety and also help with the layout of the engine compartment and steering.
The front track is smaller than the rear track and has a tendency of transitional steering. The general sports car is used.

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