It's pretty obvious to anyone with a eyes why a circle is a better shape for a wheel than a square... But, sometimes it's fun to do things that aren't entirely rational.
The Mythbusters seek to satisfy our curiosity of what wheels would be like in a world gone mad below. They fabricate and mount their own Mythbusters brand square rims on aged F-250 and take it out for a test drive. How does it handle? Hit the link to find out.