I would say thats probably the only thing the body is missing. Kind of unfortunate. The idea for that was to gain total access to the engine and suspension components. I wonder if they have provisions for the rear to come apart.
I find it hard to imagine that the plugs would not be readily accessible, as the car is being readied for competition purposes. I'm sure that the operations necessary for on-track support have to be weighed heavily in the design phase.