Two wheels - One wheel - No wheels?

[icarusinbound]

Perhaps I'm just becoming far too skeptical, but what do members of the forum take from these videos?

Harmless and inspiring depictions of impressive technical progress, or well-crafted pixelfiction?


full link: http://www.youtube.com/watch?v=HEwv7Z4SSQQ


full link: http://www.youtube.com/watch?v=Z1YoCfm7nxU


full link: http://www.youtube.com/watch?v=L75ESD9PBOw



And in what ways, if any, do they differ from these overt fakes below?


full link: http://www.youtube.com/watch?v=GYW5G2kbrKk

(including this classic contemporary 'faked fake')

full link: http://www.youtube.com/watch?v=ZaXI57qpasM