[boxhead]

The chassis sits under the body very well, there are raised sections through the floor for the "K" part of the chassis.

Defining features I noticed on teh body are.
The raised lip around rear of cockpit (I have read that Arntz had this?)
The fuel filler in left rear quarter.
The rear firewall does not go all the way up to the rear turrent (there is about a 12 inch gap open to the boot area)
The floor has raised sections for chassis
The rear firewall/bulkhead is angled at about 45 degrees from the floor up.
The boot area is very deep (suspect fuel tank is designed to sit in the boot rather than under)
Front firewall extends forward into engine bay approx 8 inches before going down.