Ok up for grabs is a fiberglass enclosure to fit the holy grail of subs... The JL 12W7. This will ONLY fit the E90. This is BRAND NEW! This was custom-made for me sent from over the pond. The builder has made many top-notch enclosures for many makes and models. Again this is brand new and will ONLY fit in an E90! This is made for the 12 inch W7 but I am sure other subs will fit but this one is made for the W7. You can not find this unless you make it or have someone make one for you.
EDIT. The photo with the sub in the box is another enclosure made for me. That one is in an e92. This one for sale will ONLY fit the e90 body.