Dave - Have you ever considered Hot Wheelsifying the Juggernaut from the serial film Crash Corrigan and The Undersea Kingdom, which I watched with great delight at the Waverly Theater in Baltimore in the late 1940s? (
https://en.wikipedia.org/wiki/Undersea_Kingdom)
We discussed the film and the vehicle in this thread:
The JUGGERNAUT (from Undersea Kingdom (1936))
Chris Walas made the unforgettable entry: "And who could forget in
Undersea Kingdom when Crash Corrigan was ruthlessly strapped to the front of the juggernaut and faced certain and gruesome annihilation when the Juggernaut was about to ram the gates of the fortress?!?
Don