: Hey, I was wondering about the availability of the 8 series. I really want to get one but probably will have to wait for maybe like 5 or 6 years. How easy do you think it will be to get an 8 at that time? Im thinking more ont he lines of an 840. Also I was wondering how much would it cost to add a kit to the 840 so it resembles the Csi? Also how much is it to retrofit an 850 with a newer v12 engine.