I was there when the blue production car fired up, and I saw video of the skittles car starting up as well.
I should've taken a picture of the tag on the car, but it pretty much stated that it was a model that could get ran even without EPA approval.
The production ones that you speak of were...
So Robby did state that the turned over was version 4.999. The three that were version 5 (Red/Black, Blue, & Skittles car) were production.
He said the production cars will have that rosette weld in the middle. The inner pivot point may not be a plug but he stated in his video while in Asia the...
This is a design that they used on the Unicorn TT, to get every last inch of travel.
It's held up pretty well on a TT so I would say its been a good design. It has many other pluses to it, but id refer you to a video of RG talking about it to get full details.
Also, if you know RG at all, he...
He also states that they weld that plug into the chassis. Again, people need to chill, and actually just go watch the videos.
It would calm this forum a lot lol