Looks like there are a few triangulation elements missing in the design. Crosswise on rear main roll hoop, side boxes along side engine/gearbox element, fuel cell boxes, bottom of front suspension chassis "box", same for foot box.
I don't like the single shear front lower control arm "tower" used for the chassis forward link mount points and the seemingly lightly constructed chassis mounts for the other lower control arm mount point. These are hard to see so a closer inspection might yield a different opinion but for now I'm negative on the front lower control arm mount design. I would prefer a nice box with the control arm bushing contained inside it and mounted in double shear.
Clearances in the rear for gearboxes looks tight also especially at the bottom between the control arm pickup points. They did use nice long lower control arms, I like that.
In the end the geometry isn't known, Camber gain, kingpin angle, etc. etc. ???????????.
Interesting to see what a round tube chassis of a GT40 looks like. It seams to waste a lot of space, but maybe its just me. I would like to see a more complete naked chassis with engine/gearbox, shocks, antiroll bars, brakes etc mounted.
Have a look at a Daytona Prototype chassis.