Today the car is the most popular sort of transportation in all of the United States. It has completely -1- the horse as a -2- of everyday transportation. Americans use their car for -3- 90% of all -4- business.Most Americans are able to -5- cars. The average price of a -6- made car was, 050 in 1950, 470 in 1960 and up to, 750 -7- 1975. During this period American car manufacturers set about -8- their products and work efficiency. As aresult, the yearly income of the -9- family increased from 1950 to 1975 -10- than the price of cars. For this reason -11- a new car takes a smaller -12- of a familys total earnings today. In 1951 -13- it took 8.1 months of an average familys -14- to buy a new car. In 1962 a new car -15- 8.3 of a familys annual earnings, by 1975 it only took 4.75 -16- income. In addition, the 1975 cars were technically -17- to models from previous years. The -18- of automobile extends throughout the economy -19- the car is so important to American.Americans spend more money -20- keeping their cars running than on any other item.