How to purchase a vehicle without any mistake? Prosaic things are able to help or confuse during selection. How to avoid?

Hardly anyone appreciate that usually little things are able to confuse a lot. We should not pay attention that much to colour, little scratching or smell. Other things are more serious.
Browsing Internet with automobile offers first matter which we find is price. Of course, we have to decide how much we could spend on automobile and pick paying way. We are able to decide between cash, credit card, leasing or payment in parts spread. So popular is picking installments cause people seldom have all value on their bank accounts to use it in one moment. Then with support comes financial institutions.