As awesome as the e92 m3 and 1m are, that 240i (and 140i) is just as lekker, and for everyday use, probably better. Tough decision this since you'll miss that low range shove, midrange might and higher rev enjoyment from the B58. It's also a lot more usable for daily use, as it's comfortable, quite efficient and flippin powerful. However, life is short, so if the OP has an ictch for an M car, may as well investigate. I think his mind is actually made up, and is just looking for confirmation on the move. Besides, from a financial viewpoint, acquiring a well looked after e92 or 1m will suffer way less depreciation compared to the 240i. Good luck