Why do we need cars

Under the words "car", "car" most often means a vehicle owned by a private person. To have it is a personal matter for everyone, since owning them involves fairly significant expenses: fuel, maintenance, storage, fines, taxes, etc. But most importantly, the internal energy of the fuel is very inefficiently spent in such a machine. Per person, moving "from point A to point B" even in a small car will require significantly more fuel than if it covers the same distance, for example, by bus or subway.
If there are several passengers, the total consumption increases slightly, therefore, it is more rational to drive in groups. This clearly shows this calculation. The engine capacity of a small car is about 70 kW, with four passengers per each 17.5 kW, with one 70%. In a bus with a 200 kW engine and 50 passengers each accounts for only 4 kW. But this does not mean that if you have a car, you need to get rid of it immediately. You can not ride every day, but only when there are no traffic jams, and a considerable distance needs to be covered.Or when you need to deliver a heavy load, such as a refrigerator. You can simply not drive in the winter, again, in the days of strong traffic jams, use intercepting parking lots.
The bus is also a very common form of motor transport, and the most common form of public transport. Slightly inferior in terms of environmental friendliness to a trolley bus and a tram, it has the advantage of autonomy: it does not require the equipment of roads either by wires or rails. Bus engines in most cases run on low-cost fuels: diesel and methane (with the exception of minibuses, and not all). Together with a more rational consumption of this fuel, this factor makes the bus very economical. In the cost of a bus ticket, fuel costs are only a few percent, the rest is the salary of drivers and support staff, spare parts, depreciation. But even so, it is much more profitable for a passenger to ride it than by taxi or own car, especially when using a ticket.
Official vehicles make up only a small percentage of urban transport, so it has little effect on the environmental background and on traffic jams.But he plays a huge role, because without him many processes in the city would seem to have stopped, seemingly imperceptible, so long as they proceed without failures. For example, the movement of goods, patrolling the streets. It is also this type of transport that most often reach doctors of their destination, utilities specialists, etc. Special types of vehicles are used in road maintenance, mining, agriculture, airport maintenance, and military affairs. We can safely say that thanks to official vehicles we are full, healthy, safe, and in the courtyards of our houses lanterns are lit in the evenings.
It is hard to imagine a sport without a car. Drivers of sports vehicles, called pilots, participate in interesting competitions that gather a lot of spectators. And in other sports, in addition to such an obvious role as the delivery of athletes, motor transport plays and supporting roles, for example, in the course of repair and preparation for competitions of stadiums, rinks, etc.