We can't embed this but you really should go and take a look (click on the post title above ^)
It's the trailer for the upcoming Tron Legacy, the sequel to the original Tron movie.
It's made by Disney so will almost certainly feature a cheesy plot and happy ending, but that's absolutely incidental to the real point of the film - lightcycles rendered in glorious three dimensional CGI!
First person to build a rideable replica lightcycle (complete with light trail coming out of the back - maybe some kind of pump arrangement that sprays Blue Cherry Slush Puppie?) wins a lifetime subscription.