crf450r or 600ex info?

[300exjumper]

Has anyone heard if there is really such thing as these two quads or if its just a rumor?

[tom400ex]

Yes they are real...........
BUT
honda didn't make them. i just went out to look for that magazine article that someone on here posted. They are 2 project bikes that I forget the 2 company's names but some gnc racer dude rides the 450 and the 600ex is a motorcycle engin slapped into a quad frame. Thats all:(