I found them on this site, don't know if it's accurate but the photos are dated 2008. http://www.hackersparadise.biz/2_79.html
I don't think for a minute that Gladiator or Ben Hur didn't influence the look of them slice and dicers...it truly has a Jetsons or Tri powered 409 gliding at a smooth 100 MPH standing still Custom look about it...Practical No, Show Worthy absolutely, I envision this in a vintage Hotrod/Custom Artists bag of tricks to Wow the Eyes... What's the true history...I'd believe it is older than we imagine even if Jack's are newer...maybe he made them in the 50s...or he was influenced by that movie trailer...I'd like to know... That movie was bad Hotrod/Custom...