All cars are divided intoseveral categories and types. In the factory registers, each model is assigned to a specific class. Comparison of machines is subject to strict criteria. The class of small car includes cars with engine power up to 90 hp, the class of racing cars is different with a speed rate exceeding 240 km / h. Executive class - this is a machine of superior comfort, soft and smooth on the go. Sports cars will be recognized by their characteristic exterior, the fast-moving lines of a low-sitting body and the revving motor.
Each car has a set of distinctivesigns. However, any model tends to lose its attractiveness over time. Then the manufacturer takes up the update. Comparison of machines that have already passed part of their resource with new models is usually not in favor of the first. In the automotive industry there is such a thing as a modification. This means that any car can be modified with a change in design and exterior, but the brand, class and category of the car will remain the same. Sometimes the modification is cardinal, the car after reworking changes its shape so much that it is impossible to recognize it. In the case of deep changes, the car gets an additional name as a continuation of the main, for example, Opel Cadet turbo, or Mercedes 220 cruise. Countless options. It is the variety of modifications that makes it possible to regularly compare machines of different categories and choose the best options for further production.
Чаще всего новая машина создается в трех options, the main difference between which is the shape of the body. This is a car with a "sedan", "hatchback" and "station wagon". The sedan is an all-metal body, divided into three compartments: a motor for placing the engine with the accompanying components and assemblies, then the cabin for the driver and passengers and, finally, the luggage compartment. In passenger cars, the engine is always separated from the passenger compartment, the tightness of the partition is a prerequisite for the characteristics of the car. The trunk of the sedan is also insulated with a special partition.
The body structure of the "hatchback" is somewhat different.The engine compartment, like the sedan, is hermetically separated from the passenger compartment, but the trunk is a continuation of the cabin space, there is no partition. The role of the partition performs the back of the rear seat, but the separation of the trunk and passenger compartment in the back of a “hatchback” is purely conditional. From the back of the seat to the glass of the trunk door, a horizontal panel of extruded fibreboard, covered with dense fabric, is installed. The fundamental difference between a car with a hatchback and other cars is a shortened rear overhang and, as a result, a reduced volume of luggage compartment. The advantage of the hatchback is a large rear door. With the door open, it is convenient to load any loads.
Features similar to the hatchbackwagon, whose body is designed according to the same scheme. Comparing cars with a hatchback and a station wagon reveals a significant difference. The wagon in the back is much longer, which gives a significant gain in the amount of luggage space. The door of a back opening of the versatile person is located more vertically, and it gives the chance of the extensive review. In some models, the rear door may be located in a sloping position, like a hatchback, but the rear overhang of the car in any case remains elongated.
Такой тип кузова носит название "лифтбэк".However, this type of special distribution is not received due to inconvenience when using the luggage door. Comparing cars by performance is the best way to determine the most successful designs. And if we apply the results in the production, which can give a comparison of cars in terms of parameters, in the near future there will be new modern cars that incorporate the best qualities of their predecessors.
