Stardust Speedway 004 - In The Beginning; There was a hedgehog from Nebraska

Well; I also have been researching on the internet and I have found some interesting documents which ended up being the original concept documents that Sonic Team used to create the original title.

Not the series; has come an extreamly long way since these days; but they are a rearly good read.

You can find the link at the following address

http://www.neogaf.com/forum/showthread.php?t=352814