A quick update. My home machine died and there was some turmoil re-syncing backups etc.
There have been edits to correct an issue with complying to regulations for roll cages. There rear roll hoop braces now do not joint at a single node in the middle of the back. Instead the bars go nearly straight back. The bracing underneath the bar was modified to suit.
Several parts of the frame have been made into components to make sure the car matches on the left and right side. We will no longer have different parts on each side for comparison purposes. They will be in different layers.
Proper mounting for the trailing arms on the front roll hoop legs has been added.
The car is a little less attractive now because there are more parts in transition, but it is good progress nevertheless.