A high inflation rate suggests that you are better off buying a car today rather than waiting for tomorrow, when it will be more expensive.
That said, the biggest question would seem to be if you need a car. If you would not buy a car on your own until you were much richer relative to the price of a car, then you don't seem to need a car.
Is there some reason why you might need a car in a year or two? If inflation outstrips investment returns, you might be better off buying a car at current prices rather than waiting.
You might consider if you would get a fiscal advantage from the car. Will it make your travel easier? Could you use the car in a business? In the United States, there are things like pizza delivery and ride sharing where you can get paid to drive a car. I'm not sure what is possible in Iran.
Will you be able to sell the car in the future? For how much? You can use past performance as a guide to this question.
The other thing to consider is what benefit the business or activity would provide you. That can help you compare to the benefits of having the car.