Rear section of the mold
...with tunnel flanges
Separated from the "main" mold
...still "technically" inverted

Un-inverted
...or maybe verted
* Notice the nice ~2" "lip"
...that we should "get"
...along the bottom
&
The ~2" "wrap around" flanges
...that we should "get"
...along the sides
&
How they should
1.) help "stiffen" the "tail" of this chassis/monocoque
2.) produce nice "connecting flanges" for mounting the "outer" body (side & floor) panels

Close up of some of the "trim" work or "fillets"
...that are "bridging" the horizontal to vertical transitions

An even closer
...upper closer looker
