I have to agree the car should sell in the very low $60K range with that milage (thinking of the US market, in Canada this car would cost around $68K to $70K).
When you are serious about getting an M3 be sure to tell the Salesman ... "I am comparing your car to two others with very similar options" he soon will sharpen his pencil and give you a fair price. If not just walk away and find another dealer