Clearly this makes no sense hence the confusion.
Its not like you said you wanted an 2011 or 2012 but an 09? Even if you had an 08 what is the point in selling and than buying an 09?
Can you explain what current m3 you sold and what the 09 is going to give you that the one you sold will not?
Maybe if you had an e46 that you sold and we are confused but sounds like you had an e90 so we are confused