I re-entered the hobby about 6 months ago after being away for 25 years so I have a little advice.
Someone mentioned getting a used motor, that is a great idea, brand is not important since you may upgrade in 3-6 months. Until you become a bit better at driving the car a motor is your least important item.
Regardless of the set up tires are critical, find what others are using at your local track before making any bulk buys.....don't forget tire sauce.
Spend your money on a nice radio (I plan to upgrade to a Spektrum DX4R as soon as I can afford it), it will serve you longer than most of your cars. There are a number of good radios out there so find one that has the features you use the most...and feels the best in your hand.
Don't hesitate to buy quality items you know will last, it's nice to spend money once if you plan to take this up seriously rather than having to upgrade a month or 2 down the road.
BTW, your English is very good......better than some that were born here.