One oopsie- the author claims 4.0L Explorers 2005 and earlier are E85 compatible. Not so. Only if its labeled "FFV" on the gas cap, and it should have the leafy badge on the side.
Here's the model-by-model breakdown. Determination made by your VIN:
http://www.e85fuel.com/information/vin.php
If you're willing to void your warrantee, or are out of warrantee, there are lots of reports of people using E85-gasoline blends in 'regular' cars with no problems, other than maybe harder starting in the winter. Most of them seem to be running 1/3-1/2 E85, but some are running full E85 without problems, other than the idiot light being on. Depends on how lenient your engine controls are, I suppose.
Now if we could shift the infrastructure to pipe it around without water entrainment.