The American company " Оldmobils" (now is subdivision of business concern "General Мотоrs") produced in a sale the first in the world car with a hydro. Many know full surely that for switching of speeds in a machine with a mechanical gear-box it is required to reap coupling and translate the special lever. A new gear-box " decided" for a driver, what speed it is necessary to put in the, and under the feet of driver there are only two pedals - gas and brake. However, some drivers dislike to give a management a machine to automation. Therefore even so much years after(in 1940 produced the first box) cars with a mechanical box all еше is produced.