I have my eye on an M3, I called the dealer and told him how much I was willing to pay. If your offer is fair but low they might hold out a few days, but the second a slow day come around, or the salesman wants to make his numbers for the month he will call and sell you the car. Be patient and NEVER fall in love with any one car, or one deal. If they tell you the "DEAL" is only good for one day, then it's not a good deal.